Middle - class lifestyles have flourished even though median wages have barely budged.尽管收入中值几乎原地不动, 中产阶级 的生活方式还是日益兴旺.Under the wise rule of the headmaster, the school flourished.在校长明智的管理下, 这所中学得以发展起来.Archimedes flourishe...
介绍了自动倒角机的系统组成、主要设备及功能.The construction composition and functions of this machine were introduced.型型台式 高速 复合倒角机.High - speed desktop type compound chamfering machine.为了清除棒材在生产过程中产生的端部毛刺、飞边等缺陷,研制开发了棒材自动倒角机.An automatic rad...
Dirac's theory also predicted a negatively charged sister for the proton, called the antiproton.狄喇克的理论还预言有一种质子的姐妹粒子,带负电荷, 叫做反质子.Similarly the positively charged proton has a negatively charged antiparticle, the anti...