High bending fatigue strength and contact fatigue strength are needed for heavy duty gear steels. 重载齿轮钢要求具有高的弯曲疲劳强度和接触疲劳强度。
Fatigue properties of three case hardening steels for heavy duty gears after carburization were investigated by means of rotating bending fatigue tests. 利用旋转弯曲疲劳试验方法研究了三种重载齿轮钢渗碳后的疲劳性能。
Literature synthesis The relative factors on flight fatigue are discussed, based on which, the principles for duty limitations and rest requirements are put forward. 资料综合就导致民航飞行人员飞行疲劳的相关问题进行讨论,并在此基础上提出民航飞行人员的飞行时限与休息制度的原则。
By the theory on crane metal construction and ANSYS output data, the static strength and the fatigue strength of gantry have been analyzed so as to give the reason for the possibility of increasing capacity and duty. 根据起重机金属结构的理论并结合ANSYS的输出,分析了门架的静强度和疲劳强度,借以说明提高门式起重机的工作级别和起重量的可行性;
The work song, is one kind is following the folk song which directly works sings, produces in the work, and for the fatigue duty, has the intense life breath directly, music disposition rough heroic, firm powerful. 劳动号子,是一种直接伴随着劳动进行歌唱的民间歌曲。它产生于劳动,并直接为劳动服务,有着强烈的生活气息,音乐性格粗犷豪迈、坚定有力。
Fatigue driving may lead accident of battleplan and military vehicle to affect military logistic transportation. Fatigue may also lead negligence of the frontier defence duty to severe aftereffect. 疲劳驾驶可能导致军机军车事故,影响军事后勤运输保障;疲劳也可能导致边防值勤疏忽大意而造成严重后果。