All the royal cars are fitted with electronic homing devices.所有的皇家轿车都装有电子自导引装置。These cruel devices are designed to stop prisoners bending their legs.这些残酷的刑具是用来阻止犯人弯腿的。Most mechanical devices require oil as a lubricant.绝大...
For particulates, the favored devices are inertial impactors, cyclones, electrostatic precipitators, and filters.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.Handheld devices are used in a variety of specific contexts.手持设备会用在各种各样的具...