And microscopic analysis indicates that some microsize mineral particles embedded friction surface, which make friction surface strengthened and recoverable.
同时,微观分析表明,微小的摩圣矿物粒子入摩擦表面,可对摩擦表面起到强
和修复的作用。
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The entire contraption of ''Unbridled Energy'' is supported only by a rote optimism: ''The United States has 250 billion tons of recoverable coal reserves—enough to last 100 years, even at double the current rate of consumption.''
“无限制的能源”这一新鲜的设想,仅仅是基于盲目的乐观:“美国拥有2500亿吨回收煤炭储备,即便是以目前两倍的消耗速度,足以维持一百年”。