مركز الفحص هنا.

In Modern Standard Arabic, the present-tense verb to be is usually not stated.

So مركز الفحص هنا literally looks like:

• examination center
• here

But it means The examination center is here.

This is a very common Arabic sentence type, often called a nominal sentence.
If you wanted a past or future meaning, then Arabic would normally use a verb, but for simple present meaning, no is/are is needed.

مركز الفحص is a noun phrase meaning the examination center, the inspection center, or the testing center, depending on context.

Word by word:

• مركز = center
• الفحص = the examination / the inspection / the testing

So the phrase is literally center of the examination/inspection.

In real use, English often translates this more naturally as:

• the examination center
• the testing center
• the inspection center

The best choice depends on the situation: medical, administrative, technical, vehicle inspection, etc.

Because مركز الفحص is an iḍāfa construction, often called a construct phrase.

In an iḍāfa:

• the first noun usually does not take الـ
• the second noun can be definite
• the whole phrase can still be definite

So:

• مركز = center
• الفحص = the examination / the inspection

Together:

• مركز الفحص = the center of examination / inspection

Even though مركز does not have الـ, the whole phrase is definite because the second noun, الفحص, is definite.

That is why Arabic says مركز الفحص, not المركز الفحص.

Yes. This is a very normal word order for a nominal sentence.

The structure is:

• مركز الفحص = the topic / subject
• هنا = here

So Arabic is saying:

• The examination center — here

Which in natural English becomes:

• The examination center is here

This order is completely standard. Arabic often puts the thing being talked about first, then gives information about it.

Yes, you can also say هنا مركز الفحص.

Both are possible, but the emphasis is a little different:

• مركز الفحص هنا = The examination center is here
• هنا مركز الفحص = Here is the examination center / The examination center is here

Starting with هنا can sound a bit more like pointing something out or drawing attention to the location.

So the original sentence is normal, but Arabic does allow some flexibility depending on emphasis.

A common pronunciation without full case endings is:

markaz al-faḥṣ hunā

A more fully inflected reading in careful MSA could be:

markazu l-faḥṣi hunā

A few pronunciation notes:

• مركز = markaz
• الفحص = al-faḥṣ
• هنا = hunā

Important sounds:

• ḥ in faḥṣ is a stronger, breathier h sound than English h
• ṣ is an emphatic s
• the final ā in hunā is a long vowel

Learners often find فحص tricky because it has several strong consonants close together.

هنا means here.

It is an adverb of place, or more traditionally in Arabic grammar, a ظرف مكان.

It tells you the location of something:

• الكتاب هنا = The book is here
• المدرسة هنا = The school is here
• مركز الفحص هنا = The examination center is here

So in this sentence, هنا is giving the location of مركز الفحص.

الفحص comes from the root ف ح ص.

The noun فحص generally means:

• examination
• inspection
• checking
• testing

The related verb is فحصَ, meaning:

• to examine
• to inspect
• to test
• to check

So مركز الفحص is literally a place connected with examining or inspecting something.

Depending on context, you might hear similar meanings in phrases like:

• فحص طبي = medical examination
• فحص السيارة = vehicle inspection
• فحص الدم = blood test

Arabic handles definiteness differently from English.

In English, you say:

• the examination center

In Arabic, an iḍāfa phrase becomes definite through the second noun:

• مركز الفحص

Because الفحص has الـ, the whole phrase is understood as definite.

So Arabic does not need a separate the before the whole phrase.
This is one of the most important things to get used to when learning noun phrases in Arabic.

Yes, in fully vocalized formal Arabic, the sentence would typically be read as:

مركزُ الفحصِ هنا

That shows the grammatical case endings:

• مركزُ = nominative, because it is the subject/topic of the nominal sentence
• الفحصِ = genitive, because it is the second part of an iḍāfa
• هنا = unchanged

However, in most everyday reading and speaking, those short endings are not pronounced clearly, so learners usually encounter it simply as:

مركز الفحص هنا

Both refer to the same sentence; the second is just the normal unvocalized written form.

It is perfectly good Modern Standard Arabic, and it would also be understandable in many everyday contexts.

The exact phrase مركز الفحص sounds somewhat formal or institutional, so it fits signs, announcements, directions, and official contexts very well.

For example, it could appear on:

• a sign in a hospital
• a testing facility
• a vehicle inspection center
• an airport or security area

So while the grammar is standard MSA, the sentence is also very practical and natural in real-world use.