Заказчик отправил исходный текст, с тем чтобы исполнитель проверил память переводов.

С тем чтобы introduces a purpose clause: it means for the purpose that, so that, or in order that.

So:

• Заказчик отправил исходный текст, с тем чтобы исполнитель проверил... = The client sent the source text so that / in order that the contractor would check...

In many everyday sentences, Russian speakers would simply use чтобы:

• Заказчик отправил исходный текст, чтобы исполнитель проверил...

That version is more neutral and common in ordinary speech.

С тем чтобы sounds a bit more formal, written, or business-like, which fits this sentence well.

Because с тем чтобы исполнитель проверил память переводов is a subordinate clause of purpose.

Russian normally separates subordinate clauses from the main clause with a comma.

Main clause:

• Заказчик отправил исходный текст

Purpose clause:

• с тем чтобы исполнитель проверил память переводов

So the comma is required.

Отправил is perfective, while отправлял is imperfective.

Here, the sentence presents the sending as a completed single action:

• отправил = sent, completed the act of sending

That makes sense in this context: the customer sent the text, and that action had a purpose.

If you used отправлял, it would sound more like:

• he was sending it,
• he used to send it,
• or the action is being described as a process rather than a completed result.

In business-style sentences like this, perfective is usually the natural choice because the focus is on the completed step in a workflow.

Because the purpose is not just to be checking, but to check and complete the check.

• проверил = checked, completed the checking
• проверял = was checking / checked repeatedly / engaged in the process of checking

After чтобы or с тем чтобы, Russian often uses the perfective when the intended result is a completed action.

So here:

• с тем чтобы исполнитель проверил память переводов

means the source text was sent so that the contractor would successfully carry out and complete the check.

This is a very important Russian pattern.

After чтобы, Russian commonly uses a form that looks like the past tense, but in this construction it does not simply mean past time. It often expresses:

• purpose,
• intention,
• desired result,
• or something hypothetical / expected.

So:

• чтобы исполнитель проверил does not necessarily mean so that the contractor checked in a literal past-time sense.

It means something closer to:

• so that the contractor would check
• so that the contractor could check
• for the contractor to check

This is normal Russian grammar.

Because исполнитель is the subject of the subordinate clause.

In:

• с тем чтобы исполнитель проверил память переводов

the person doing the checking is исполнитель, so it is the grammatical subject, and subjects are normally in the nominative case.

Compare the two subjects in the sentence:

• Заказчик отправил...
• исполнитель проверил...

Each verb has its own subject:

• заказчик is the subject of отправил
• исполнитель is the subject of проверил

It is in the accusative, but for many masculine inanimate nouns, the accusative singular looks exactly like the nominative singular.

So:

• nominative: исходный текст
• accusative: исходный текст

Because текст is:

• masculine
• singular
• inanimate

the form does not change.

The same thing happens with many similar nouns:

• Я вижу новый документ
• Он открыл старый файл

Even though these are direct objects, they look like nominative forms.

It actually is in the accusative singular, but for many feminine nouns ending in -ь, the accusative singular is identical to the nominative singular.

So:

• nominative: память
• accusative: память

Since память is the direct object of проверил, it is accusative, even though the form looks unchanged.

Because after a noun like память used in the sense memory of translations / translation memory, Russian uses the dependent noun in the genitive.

So:

• память переводов = memory of translations / translation memory

Here:

• память = head noun
• переводов = genitive plural of перевод

This is a very common Russian noun pattern:

• центр города = city center
• начало работы = start of work
• проверка качества = quality check
• память переводов = translation memory

It is a technical term in translation/localization work.

Память переводов means translation memory: a database or system that stores previously translated segments.

So in this sentence, the context is professional translation work, and the vocabulary is specialized:

• заказчик = client/customer commissioning the work
• исполнитель = contractor / performer / the person carrying out the work
• память переводов = translation memory

That is why the sentence sounds formal and business-like.

Not naturally in this exact structure, because the subject of the two actions is different.

Here:

• заказчик sent the text
• исполнитель was supposed to check the translation memory

When the subject changes, Russian usually uses a finite clause with чтобы:

• Заказчик отправил текст, чтобы исполнитель проверил...

If the same person did both actions, an infinitive would be much more likely:

• Заказчик отправил текст, чтобы проверить память переводов.

That means:

• the client sent the text in order to check the translation memory himself

So the choice tells you something about who is supposed to perform the second action.

These are formal business/legal role words.

• заказчик = the party that orders or commissions the work
  Often translated as client, customer, or commissioning party

• исполнитель = the party that carries out the work
  Often translated as contractor, performer, service provider, or sometimes just executor

They are common in contracts, project documentation, and formal business communication.

So the sentence sounds like something from a professional workflow or legal/business text, not casual conversation.

Yes, Russian word order is flexible, though not completely free.

This sentence is neutral and clear:

• Заказчик отправил исходный текст, с тем чтобы исполнитель проверил память переводов.

You could also say:

• С тем чтобы исполнитель проверил память переводов, заказчик отправил исходный текст.

That puts stronger focus on the purpose.

Or, more naturally in many contexts:

• Заказчик отправил исходный текст, чтобы исполнитель проверил память переводов.

So the exact order can shift for emphasis, but the original version is formal and well-structured.

Because исходный текст is more precise. In translation contexts, it means source text: the original text that is to be translated or processed.

• текст = text
• исходный текст = source text / original text used as input

In professional translation language, this is a very common collocation. It helps distinguish the original from:

• the translation,
• the target text,
• edited versions,
• reference materials, etc.

So it is not just a text, but specifically the source text.

It is natural, but definitely formal and professional.

Things that make it sound formal include:

• заказчик
• исполнитель
• исходный текст
• с тем чтобы
• память переводов

In everyday conversation, a speaker would probably simplify it, for example:

• Клиент отправил исходный текст, чтобы переводчик проверил память переводов.

But in a contract, instruction, workflow description, or project documentation, the original sentence sounds quite appropriate.

Yes, it could:

• Заказчик отправил исходный текст, чтобы исполнитель проверил память переводов.

The meaning would stay basically the same.

The difference is mostly in style:

• чтобы = neutral, common, everyday
• с тем чтобы = more formal, more official, more written

So the original wording does not change the core meaning much; it mainly raises the register.