Shallow cone crown profile pilot bit , reaming by reamerwing, heavy cutter density.浅锥型冠部领眼, 侧翼扩眼,布齿密度加强.The curve - edged hobbing cutter is used in producing rectangular wing sanitary napkin.曲线刃滚切刀是用来加工护翼卫生巾的专用刀具.What ha...
One of the fundamental bars to communication is the lack of a universally spoken, common language...交流的一个基本障碍就是缺少一种大家都说的通用语。It's easier to take a taxi. But then again you can't always get one...打出租车要容易些，但也并不总是能...
这一封来函,一封去信,轮流地在他桌上妆点着.These two pieces of incoming and outgoing mail alternately adorned his desk.你们二人轮流地看守这位病人.You two will stay with the sick person by turns.每个学生都轮流地读那首诗.Each of the pupils in turn read the poem aloud....