Guitarists now worry that every time they cross a state border with their instrument, they will have to carry sheaves of documents proving that every part of it was legally sourced.

吉他手现在携带他们的乐器穿越州界时总是会担心，因为他们不得不同时携带大量文件证明吉他上的每个部件都有合法来源。

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An instrument system for measuring intensive electric field is implemented, based on the SAS OEFS. An experiment proving the stability of the system is proposed and carried out.

基于该单屏蔽光电集成强电场传感器，组成了强电场测量系统，提出并实施了验证测量系统外围设备稳定性的实验方案。

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