荧光灯闪了几下，接着屋子里豁然大亮，刺得人睁不开眼。Fluorescent lights flickered, and then the room was brilliantly, blindingly bright.用18瓦的荧光灯灯泡有同样的亮度，而用电量却减少75％。With an 18-watt fluorescent bulb you get as much light but use 75% less electricity...
Misfortunes (or Hardships) never (or seldom) come alone (or singly).祸不单行。When sorrows come, they come not singly but in battalions.当悲痛的事降临时,总不会单行, 它们是接踵而来.Some went as mercenary soldiers , others as merchants or craftsme...
说明在废气净化系统中集气管道的合理选择和设计对改善生产车间内空气环境是非常重要的.The paper reflected reasonable selection and design of collection gas pipeline in system of gas purge.在分析了集气管耦合关系的前提下,提出了 基于 规则的补偿解耦算法.A rule - based compensated decoupling arithm...