main advantages是什么意思 main advantages怎么读
main advantages的用法和样例
- The main features of optical tweezer are non-contact and non-invasive.
其主要优点是非接触性与非侵入性。 - Please express the main advantages of ultrasonic testing in non-destructive testing.
请叙述非破坏试验中超音波试验的主要优点。
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