提出一种新的标准环规溯源方法。
A new method for the trace of standard ring gauge is proposed.
灯壳面盖环为标准尺寸，适合各种灯具的安装装配；
Lamp shell surface cover ring for standard size, suitable for all kinds of lamps installation;
在这四项标准中，人际关系被认为是最重要的一环。
Interpersonal relationship is regarded as the most important among the four.
在这四项标准中，人际关系被认为是最重要的一环。
Interpersonal relationship is regarded as the most important among the four.
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