Scanning electron microscope(sem)
[化] 扫描电子显微镜
🗣️ 情景例句
Yes, I went to the aerobics class today.
去了啦, 我上了有氧运动课了。
Please sum up what you said just now.
请把你刚才说的总结一下。
He noticed the remains of a snake which was wound round the electric wires of a 16,000-volt power line.
他发现了缠绕在16,000伏高压线上的一条死蛇。
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