This paper describes a new method by which the positive, negative resistance to ground of DC bus and branch could be tested precisely by mere use of universal instruments and standard resistors.

提出一种仅用万用表和标准电阻就可以准确测量出直流母线和支路负荷正对地电阻、负对地电阻的新测量方法，这种方法能准确查找绝缘低故障支路；

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The paper describes status and development of domestic seismic instruments, points out the succession of instruments and stability in use should be paid attention to besides applying new technologies.

指出国产地震勘探设备在不断地研制开发新技术、新工艺的同时，也应将产品的继承性和系统的稳定性作为一项同等重要的研究课题。

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Fortunately, the new instruments will come into use in few weeks, we believe, at that moment, the customers will not maybe complain about the quality of food.

幸运的是，新的炊具将于几周后开始使用。我们相信，到那个时候顾客们就不大会抱怨食品的质量问题了。

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