本文对金属丝电爆炸产生球面激波在固壁上的马赫反射作了研究。
Stuldies on the Mach reflection of spherical shock wave produced by electric exploding metallic wire on rigid wall were carried out in this paper.
对球面滚子轴承、自调心球轴承或圆环滚子轴承而言，在允许范围内持续的不对中，不会对润滑脂的寿命产生负面的影响。
A constant misalignment within the permissible limits does not adversely affect the grease life in spherical roller bearings, self-aligning ball bearings or toroidal roller bearings.
本文提出了两种产生常用非球面机构的原理。
In this article, principles of two new mechanisms for producing usual aspherical surfaces are proposed.
应用推荐