Keypunch 的意思·音标·同义词·词根助记

📝 例句

Of equipment; without a motor and intended for hand operation a manual keypunch a manual typewriter.

对设备而言, 指无马达和用手操作的设备(如人工键穿孔机、人工打字机).

perforate pierce punch puncture blank

wafer n. 圆片，晶片;薄脆饼;[电]薄片;[宗]圣饼; vt. 用胶纸封;

undo vt. 松开，解开;取消，废除;毁灭;扰乱; vi. 撤销;

logarithm n. 对数;

polynomial adj. 多项式的，多词学名（指由两个以上的词构成的学名）的; n. 多项式，由2字以上组成的学名;

symbolic adj. 象征的，象征性的;

contouring n. 作等值线;作恒值线（法）;造型;外型修整;

warranty n. 保证，担保;[法]（商品等的）保单;根据，理由;授权，批准;

metafile n. 元文件，图元文件;

Before you leave the lab, make sure the electricity is turned off and the windows are shut.

你们离开实验室前，务必要关上电源，关好窗户。

Use the lab and prepare some plant food for young tomatoes.

用实验室为西红柿幼苗准备一些养分。

Yes, will you give him a message, please?

是这样，请你给他捎个话好吗？

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