最普通的精加工工序是用机械的方法, 如研磨, 磨削或用磨料抛光.The most common finishing operations are mechanical, such as milling, grinding, or polishing with abrasives.实验中采用磨料磨损的方式.Abrasion wearis taken as the main wear mode in the experiments.磨料水射...
30 percent of reptiles, birds, and fish are currently threatened with extinction.目前，30%的爬行动物、鸟类和鱼类面临灭绝的危险。All reptiles have to slough their skin to grow.所有爬行动物生长过程中都要蜕皮。Snakes and crocodiles are both reptiles.蛇和鳄鱼都是爬行动物....
The Bible says that Mary Magdalene and Jesus were very good friends.圣经上说抹大拉马利亚和耶稣是很要好的朋友.To make matters worse, Jesus has begun consorting with disreputable people like Mary Magdalene, a prostitute.耶稣开始安慰一些像是马利亚这样名誉不好的妓女...
The fiery right-wing leader toned down his militant statements after the meeting.言辞激烈的右翼领袖在会后收敛了他的好战言论。He's got that fiery temper which scares the whatsit out of everybody.他有一副能把所有人都吓得那个什么滚什么流的火爆脾气。She had a fiery t...