备用泵

steam jet pump

喷汽泵

stand-by pump 备用泵 | steam jet pump 喷汽泵 | steam pump 汽泵

jury pump

备用泵

jury mast 临时桅 | jury pump 备用泵 | jury 陪审团

jury pump

辅助泵,备用泵

jury of executive opinion method 经理人员集体审定法,经理人员集体审定法 | jury pump 辅助泵,备用泵 | jury rig 应急帆

off-duty pump

备用泵

non-clog type of pump 非阻塞泵;污水泵 | off-duty pump 备用泵 | oil pump 油泵

emergency push-button switch

备用按钮开关

emergency pump 备用泵 | emergency push-button switch 备用按钮开关 | emergency radio channel 呼救信号波道

standby redundancy

备用信息,备用位

standby pump 备用泵 | standby redundancy 备用信息,备用位 | standby service 备用

spare tire

备用轮胎

spare pump 备用泵 | spare tire 备用轮胎 | sparger 喷雾器

stand-by pump

备用泵

stand-by power battery 备用电池 | stand-by pump 备用泵 | stand-off glass insulator 高脚玻璃绝缘体

stand-by pump

待机备用泵

stand-by power 备用功率 | stand-by pump 待机备用泵 | stand-by purifier 备用净油机

screw pump

螺旋泵

由於入水位降低,污水要泵至高於海水水位再作隔筛处理,然后排放到海里,所需的水压亦要大幅度提升,泵水系统会由现时的螺旋泵 (screw pump)改为离心泵. 新的湾仔东污水隔筛厂内的泵房有四台主泵加一台备用泵,

haulage device：拖曳设备;运输设备

haul road 运料路;拖运材料的道路 | haulage device 拖曳设备;运输设备 | hazardous slope 危险斜坡

Let sb. in：让某人进

8.be late for school上学迟到 | 9.let sb in让某人进 | 11.travel around the world环游世界