Suddenly Lennie's eyes centered and grew quiet, and mad.伦尼的两眼忽然发直,人静下来却气得不可开交.Lennie squirmed under the look and shifted his feet nervously.伦尼被他看得非常不自在,两脚左移右挪.He didn't have to take after Lennie.他用不着拿伦尼作出气筒.Nor...
分离颗粒常用的装置是惯性冲击器, 旋风分离器, 静电除尘器和过滤器.For particulates, the favored devices are inertial impactors, cyclones, electrostatic precipitators, and filters.风动冲击器是气动冲击回转钻进的主要设备之一.Pneumatic DTH ( Down - The - Hole ) hammer is one o...