1.And microscopic analysis indicates that some microsize mineral particles embedded friction surface, which make friction surface strengthened and recoverable.
同时,微分析明,微小的摩圣矿物粒子大嵌入摩,对摩起到强化和修复的作用。
2.A recorder for recording temperature in a small biocabin on board the recoverable satellite and the speed of a centrifuge incorporated in the cabin was developed.