Độ nét và độ tương phản khá cao.

In this sentence, độ is a noun-forming word that often means degree, level, or amount.

So:

• độ nét = sharpness
• độ tương phản = contrast level / contrast

Vietnamese often builds technical or descriptive nouns this way. Repeating độ before both items makes the structure clear and balanced:

• Độ nét và độ tương phản ...

In English, we might avoid repeating the word and just say sharpness and contrast, but in Vietnamese the repetition sounds natural.

Here, nét refers to sharpness or definition, especially in images, screens, cameras, or printed text.

So:

• độ nét = image sharpness, clarity, or definition

By itself, nét can have other meanings depending on context, but in this sentence it is clearly part of the fixed expression độ nét.

Độ tương phản means contrast or more literally contrast level.

It is commonly used when talking about:

• screens
• photos
• cameras
• printed images
• visual quality

So the sentence is describing two visual qualities:

• độ nét = sharpness
• độ tương phản = contrast

Vietnamese often leaves out the verb to be when describing qualities.

So instead of saying something equivalent to Sharpness and contrast are quite high, Vietnamese simply says:

• Độ nét và độ tương phản khá cao.

This is very normal. In adjective-based descriptions, Vietnamese often does not need a separate verb like is/are.

Khá here means quite, fairly, or rather.

So:

• khá cao = quite high / fairly high

It softens the statement a little. It is not as strong as saying something is extremely high, but it still gives a positive impression.

Compare:

• cao = high
• khá cao = quite high
• rất cao = very high

Yes, cao literally means high, but Vietnamese uses it very naturally for levels, measurements, and qualities.

In English, we also say:

• high contrast
• high resolution
• high sensitivity

So khá cao works well here to describe the level of sharpness and contrast.

Yes, depending on context, that could be a more natural English translation.

The Vietnamese sentence is structurally closer to:

• The sharpness and contrast are quite high.

But in smoother English, especially when discussing screens or photos, you might say:

• The image is quite sharp and the contrast is fairly high.
• It has good sharpness and contrast.

The Vietnamese focuses on the levels of those qualities.

Yes. Và is the standard word for and.

So:

• độ nét và độ tương phản = sharpness and contrast

It connects two nouns here.

Sometimes you may hear shortened phrasing in casual speech, especially when the meaning is obvious. But Độ nét và độ tương phản khá cao is the clearer and more standard version.

Repeating độ helps show that both items are parallel noun phrases:

• độ nét
• độ tương phản

Without the second độ, the sentence may still be understood, but it can sound less neat or slightly less formal.

The structure is:

• Độ nét và độ tương phản = subject/topic
• khá cao = description

So the sentence pattern is basically:

• [Noun phrase] + [adjective phrase]

This is a very common Vietnamese pattern.

Examples:

• Giá khá cao. = The price is quite high.
• Chất lượng rất tốt. = The quality is very good.

It is neutral and very natural, especially in reviews or technical descriptions.

It would fit well in contexts like:

• product reviews
• camera or screen descriptions
• advertising
• tech discussions

It is not overly formal, but it is a bit more descriptive and technical than everyday casual conversation.

A rough pronunciation guide is:

• độ ≈ doh with a low, heavy falling tone
• nét ≈ net with a sharp rising tone
• và ≈ vah with a low tone
• độ ≈ doh again
• tương phản ≈ tư-ơng fản (southern speakers may pronounce ph like f; northern speakers more like an aspirated ph)
• khá ≈ khah with a rising tone
• cao ≈ cow

A smoother approximation: doh net vah doh tư-ơng fản khah cow

If you are learning tones, the most important thing is not just the consonants and vowels, but also getting the tones reasonably close.

Usually something visual, such as:

• a phone screen
• a TV
• a monitor
• a photo
• a camera
• a printed image

Because sharpness and contrast are visual qualities, the sentence would most naturally appear in a discussion of image quality.