题目内容
数控机床根据需要，可配置模拟主轴或串行主轴。
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数控车床必须先运行主轴，才能执行G01指令。
Directions: Put the following words into the approriate blanks.cut, predates, feedback, turn to, what’s more, compact, claims, reminds,vicious,downsizeHow important is it for a teacher to have ##1## from students
A ##2## version of newspaper is easier to read.
To improve your listening skills, you need to listen to video or tapes materials. ##3##, speaking is another way to practice your own listening.
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