Semiaperture
半孔径
🗣️ 情景例句
And next time we'll bring Michelle.
下次我们要带Michelle来。
All of us hope that you will enjoy yourselves.
我们全体人员祝大家过得愉快。
Even more processes are never patented at all but kept as secret processes.
更多的工艺过程根本就不会取得专利权，而是作为秘方保存着。