There is only a movable parts of hemisphere type, the action have no breakdown, dependable function.
只有一个半球式的球桶活动部件,动作无故障、可靠性高。
To meet the needs of safe production and ensure the secure and efficient operation of units, the safe protection control function of units must be safe, dependable and faultless.
为适应电力安全生产的需要,确保机组安全高效运行,机组的安全保护控制功能必须安全、可靠、完善。
This paper introduces the function of the chemical element of VN in themicroalloyed steels and the most economic, dependable method of V steel add N.
论述了VN元素在微合金化钢中的作用和钒钢中增氮最经济可靠的方法。
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