The value of tightening torque is relative not only to the nominal diameter and qualityclass of the bolt, but also to the security of the threaded fastener.
指出螺栓联接的扭紧力矩值不仅与螺栓的公称直径及性能等级有关,还与能否保证联接可靠工作有关。
2
It is also one of the remarkable characteristics in English class teaching and one of the marks for the qualityclass teaching, which shows an orientation to improve the English teaching in China.