kono syuuri ha hosyoutaisyou desu.

It is read:

この しゅうり は ほしょうたいしょう です。

A few notes:

• は is written ha but pronounced wa here because it is the topic particle.
• In normal Japanese writing, this would usually appear without spaces:
  この修理は保証対象です。

この means this and directly modifies the noun that follows it.

So:

• この修理 = this repair

You use この when the noun comes right after it.

Compare:

• この修理 = this repair
• この by itself is not enough; it must be followed by a noun.

Related words:

• その = that
• あの = that over there

は here is the topic particle. It marks この修理 as the topic of the sentence:

• この修理は = as for this repair / this repair

In this use, は is pronounced wa, not ha. That is one of the standard quirks of Japanese grammar.

So the structure is roughly:

• この修理 = this repair
• は = topic marker
• 保証対象です = is covered by the warranty / is eligible for warranty coverage

修理 means repair.

Depending on context, it can refer to:

• the act of repairing something
• a repair job
• a specific repair case

So この修理 could mean:

• this repair
• this repair work
• this repair request/case

In English, the most natural translation depends on context, but grammatically it is simply this repair.

保証対象 is a compound noun.

It is made from:

• 保証 = warranty, guarantee
• 対象 = target, applicable item, eligible object, thing covered

Together, 保証対象 means something like:

• covered by the warranty
• eligible for warranty coverage
• within the scope of the warranty

So この修理は保証対象です means that this repair falls under warranty coverage.

There is no particle there. 保証対象 is a compound noun.

Japanese often combines nouns directly:

• 保証
  • 対象 → 保証対象

This is very common in formal, business, technical, and administrative Japanese.

You can think of it as similar to English noun compounds like:

• warranty coverage
• repair request
• customer support

So the sentence is not missing anything; 保証対象 functions as one noun-like expression.

Because 保証対象 is being treated as a noun / noun phrase, and です is the polite copula: is / am / are.

So:

• この修理は保証対象です = This repair is covered by the warranty.

Using あります would mean exists/is located, which is not what this sentence is doing.

Using なります would mean becomes, which would change the meaning:

• 保証対象になります = it becomes eligible for warranty coverage / will be covered

But here the sentence simply states the current status, so です is the natural choice.

Not exactly word-for-word, but it is very close in meaning.

More literally, 保証対象です means:

• is a warranty-covered item/case
• is within the scope of the warranty

Natural English translations include:

• This repair is covered by the warranty.
• This repair is under warranty.
• This repair qualifies for warranty coverage.

The best English wording depends on the situation, but the Japanese is a normal way to state warranty eligibility.

Yes, but the nuance changes.

• この修理は保証対象です
  This presents this repair as the topic and states something about it. It sounds neutral and standard.

• この修理が保証対象です
  This puts stronger focus on this repair as the specific one that is covered, often in contrast with others.

For example:

• どの修理が保証対象ですか。
  Which repair is covered by the warranty?
• この修理が保証対象です。
  This repair is the one that is covered.

So は is more natural for a basic statement, while が often adds focus or contrast.

In casual conversation, yes, it can be omitted:

• この修理は保証対象。

This sounds blunt, clipped, or conversational, and is more likely in speech, notes, or informal workplace talk.

But in normal polite speech, especially in customer service or business contexts, です is much more appropriate:

• この修理は保証対象です。

Since warranty language often appears in formal settings, the version with です is the standard one to learn.

It is polite-neutral and fairly common in customer service, business, and technical contexts.

Why it sounds formal-ish:

• です makes it polite
• 保証対象 is somewhat technical/administrative vocabulary

In very casual everyday conversation, a person might say something less technical, depending on context, such as:

• この修理は保証でいけます。
• これは保証で直せます。

But この修理は保証対象です。 sounds natural and appropriate in official or service-related language.

Because Japanese often uses compressed noun phrases.

Breakdown:

• この修理 = this repair
• は = topic marker
• 保証対象 = warranty-covered item/case
• です = is

English often needs extra words like by, for, or under, but Japanese can express the same idea more compactly through noun compounds.

So even though English says:

• This repair is covered by the warranty

Japanese says something structurally closer to:

• As for this repair, it is a warranty-coverage target.

That sounds unnatural in English, but it helps explain why the Japanese is so compact.

No. Standard Japanese writing normally does not use spaces between words.

The usual written form is:

この修理は保証対象です。

Spaces are often added only:

• in beginner textbooks
• in teaching materials
• for readability
• in some children’s materials

So the spaced version is helpful for learners, but not the standard way Japanese is written.