kono kikai ha ondo wo seigyosimasu.

は marks 機械 as the topic of the sentence.

So この機械は means something like:

• as for this machine
• this machine, ...

In English, we often just say This machine controls the temperature, but Japanese often separates the topic from the rest of the sentence.

So the structure is:

• この機械は = as for this machine
• 温度を制御します = controls the temperature

を marks the direct object of the verb — the thing being acted on.

Here, the verb is 制御します (to control), and the thing being controlled is 温度 (temperature).

So:

• 温度を = temperature + object marker
• 温度を制御します = controls the temperature

A good way to remember it is: the noun before を is usually what receives the action of the verb.

Japanese usually follows a topic/comment structure and often puts the verb at the end.

English:

• This machine controls the temperature.

Japanese:

• この機械は 温度を 制御します。
• literally: As for this machine, temperature controls

A more natural breakdown is:

1. この機械は = as for this machine
2. 温度を = the temperature
3. 制御します = controls

So Japanese often works like: Topic + object + verb

この means this and must be followed by a noun.

So:

• この機械 = this machine

You cannot use この by itself in front of nothing. If you want to say this on its own, you would use これ instead.

Compare:

• この機械 = this machine
• これ = this

So in this sentence, この is used because it directly modifies 機械.

These are all demonstratives used before nouns:

• この = this ... near the speaker
• その = that ... near the listener or already mentioned
• あの = that ... over there, away from both

Examples:

• この機械 = this machine
• その機械 = that machine
• あの機械 = that machine over there

This is a very common pattern in Japanese, so it is worth memorizing early.

制御する is the plain/dictionary form. 制御します is the polite ます-form.

So both mean to control, but they differ in style:

• 制御する = plain
• 制御します = polite

In many textbooks and normal polite conversation, ます form is used first, so 制御します is very natural here.

Yes. 制御します comes from the noun + する pattern.

• 制御 = control
• 制御する = to control
• 制御します = to control / controls (polite)

This is extremely common in Japanese, especially with words of Chinese origin.

Other examples:

• 勉強する = to study
• 運転する = to drive
• 確認する = to confirm

So if you learn 制御, you can often build the verb by adding する.

It can mean either, depending on context.

Japanese non-past forms often cover both:

• present habitual/general truth
• future action

So この機械は温度を制御します could mean:

• This machine controls the temperature.
• This machine will control the temperature.

In this sentence, it most naturally sounds like a general fact or description of what the machine does.

Japanese does not usually have articles like a, an, or the.

So 機械 can mean:

• a machine
• the machine
• machines

The exact meaning depends on context.

Here, この機械 already means this machine, so English naturally uses this and does not need the anyway. But in general, Japanese nouns often appear without articles.

温度 specifically means temperature.

It refers to measured temperature, such as the temperature of a room, machine, liquid, or system.

For comparison:

• 温度 = temperature
• 熱 = heat
• 暑さ = heat/hotness in weather or feeling

So 温度を制御します is specifically controls the temperature, not just controls heat.

Sometimes, but the nuance changes.

• この機械は温度を制御します。
  = As for this machine, it controls the temperature.
  This presents this machine as the topic.

• この機械が温度を制御します。
  = This machine is the one that controls the temperature.
  This gives more focus or emphasis to this machine.

So は is more neutral for a general statement, while が can sound more specific or contrastive depending on context.

You are right: normal Japanese writing usually does not use spaces.

The sentence would normally be written as:

この機械は温度を制御します。

Spaces are often added in learning materials to help beginners see the parts more clearly:

• この
• 機械
• は
• 温度
• を
• 制御します

So the spaced version is just a teaching aid.

A simple pronunciation guide is:

kono kikai wa ondo o seigyo shimasu

A few points:

• 機械 = kikai
• 温度 = ondo
• を is usually pronounced o
• 制御 = seigyo

So the whole sentence sounds like:

kono kikai wa ondo o seigyo shimasu

If you are reading aloud, remember that は is written ha but pronounced wa when used as the topic particle.

Yes, it is natural, especially in technical, instructional, or explanatory contexts.

Because 制御する is a somewhat technical word, the sentence sounds like something you might see in:

• a manual
• a product description
• an engineering explanation
• a technical presentation

For casual everyday speech, a simpler verb might sometimes be used depending on context, but this sentence itself is perfectly natural.