汤姆探头到弗兰克的办公室，“你找我有事？”

Tom poked his head in Frank's door.

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二是使用了一个在样品室非真空环境下仍然能起作用的二次电子探头。

The second is using a secondary electron detector that could function in this non vacuum sample environment.

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本文介绍磁探仪的检测原理、方法、探头和仪器，还列举了实验室实验结果以及技术数据。

This paper describes the principle and method of the permeameter testing as well as the related instrument and probe, and also described are the technical data obtained.

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