Chadless perforation
[电] 无屑凿孔
🧩 词语组成解析
[计] 半穿孔
perforation
[[ˌpə:fə'reiʃən]]
n. 穿孔, 孔眼, 贯穿, 贯通\\n[化] 穿透
🗣️ 情景例句
Don't be silly, Harry.
别闹了， Harry。
How are you feeling today?
你今天感觉怎么样？
Be careful! Don't throw your cigarette out of the window. If you do that, you may start a fire. Put it out in the ashtray.
当心！别把香烟丢到窗外。要是你那样做，会引起火灾的。把它熄灭在烟缸里。