It's very reliable.
phrase
Unreviewed
非常可靠

It is under guarantee. / It is under warranty.
phrase
Unreviewed
它在保固期內。

Make sure the machine is...
phrase
Unreviewed
確保機器是...

I'll have a look at it. / Let's have a look.
phrase
Unreviewed
我來看看。,讓我看看 。,我來檢查一下。

It's in good condition.
phrase
Unreviewed
狀況良好

It's in bad condition.
phrase
Unreviewed
狀況不佳

Can you replace it?
phrase
Unreviewed
你能替換它嗎?

I can fix it.
phrase
Unreviewed
我可以修理它。

Wa can fine-tune...
phrase
Unreviewed
微調,微調整,調整微細度
