双语例句
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As long as the counter is positive, contral is returned to the user program.
只要计数器是正数,控制器就返回到用户程序.
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Add a positive pole in the contral of pipe, but others may dislike to execute it if the quantity was small.
在管子内部加芯棒，但是数量少可能别人不愿离做。比较麻烦的。