To detect engrams, Hubbard adopted a battery-powered galvanometer with a needle dial wired to two empty tin cans.

为了探测记忆印痕，哈伯德采用了一种电池驱动的电流计，它有一个指针可调节，连接着两个空罐头盒。

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Firstly, the control process analysis of man-machine interface design, finally compiled the corresponding software 12 blocks straight needle dial filling machine control process.

首先对控制过程进行分析，对人机界面设计，最后编制相应的系统软件实现12针拨块直线灌装机的控制流程。

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The needle on the dial went right around to fifty feet, which was as far as it could go, and there it stuck.

刻度盘上的指针一下转到了50英尺处，即其所能达到的最大刻度，然后卡在了那里。

《柯林斯英汉双解大词典》