Surfascope
光学表面光洁度测量仪
🗣️ 情景例句
May I have a tour of the cockpit, please?
我能参观一下驾驶舱吗？
How many handfuls are you going to get?
你要取几把？
She stood up and took his arm.
她站起来，拉住他的手臂。