general rules for the formulation of letter symbols in electrotechnology
Related Translations:
制订: work [map] out; formulate; draw up; evolve 短语和例子制订方案 work out a scheme; 开会制订今年的生产计划 hold a meeting to draw up this year's production plans; 制订一个解决问题的方法 evolve a solution for the problem
汽车道路试验方法通则: motor vehicles general rules of road test methodd
