Household electric direct - acting room heaters - methods for measuring performance 家用直接作用式房间电加热器性能测试方法
Specification for direct - acting electrical recording instruments and their accessories 直接作用的电记录仪表及其附件规范
Direct - acting pressure - reducing and pressure - control valves for fire protection service 消防设施用直接作用的降压和控压阀
Direct acting instrument 直接作用仪表
These work by recognizing simple bits and pieces of patterns , and acting on them immediately 可以通过识别零散的模式并直接作用于它们来完成这些工作。
Floating hammer , force of impact don ' t act on basic shaft and surface , have buffer action 环锤浮动，冲击力不直接作用于主轴和壳体，有一定的缓冲作用。
Environment and protection for direct acting indicating analogue electrical measuring instruments and their accessories 直接作用模拟指示电测量仪表及其附件的环境条件及防护性能
Direct acting indicating analogue electrical measuring instruments and their accessories . part 9 : recommended test methods 直接作用模拟指示电测量仪表及其附件第9部分:推荐的试验方法
For reference types , the function operates directly on the referenced object , so the referenced object can be modified 对于引用类型，函数直接作用于所引用的对象，因此将修改所引用的对象。
Direct acting indicating analogue electrical measuring instruments and their accessories . part 9 : recommended test methods 直接作用的指示用模拟电气测量仪器及其附件.第9部分:推荐的试验方法
