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- perforated pipe sprinkler 多孔管喷水灭火装置
- PE various communications cable sheathing of the joints, perforated pipe joints. 各种PE通信电缆护套管接头,多孔管接头。
- An apparatus in which water falling through a perforated pipe entrains air into and down the pipe to produce an air blast for a furnace or forge. 喇叭形风管一种用水流通过一打孔的管路使空气进入底部产生空气流并送入火炉中或锻炉中的装置
- In this paper,thetype of flow in perforated pipe was analysed,and the influence of which on calculating waterhead losses was simulated by computer programme. 大量计算表明,灌溉中使用的小流量多孔管的首端流态一般是紊流光滑区和紊流过渡区,而在末端或多或少出现一定长度的层流段。
- automatic dry pipe sprinkler system 干式自动喷水灭火系统
- automatic wet pipe sprinkler system 湿式自动喷水灭火系统
- Sprinkle irrigation A method of irrigation in which water (under adequate pressure) is sprinkled over the land through nozzle lines, perforated pipes or sprinklers. 一种灌溉方法,使水(在适当压力下)通过喷管、有孔管道或喷水器对土地进行喷洒灌溉。
- injecting grout through steel perforated pipe 钢花管注浆
- perforated pipe completion method 贯眼完成法
- dry pipe sprinkler system = dry-pipe sprinkler system 干式喷水灭火系统<由干式报警装置
- Keywords heat transfer;thermosyphon;perforated pipe; 传热;热虹吸管;分流管;
- Sheets of postage stamps are perforated. 一张张的邮票都打过接缝孔。
- The target was perforated by bullets. 靶子上全是子弹打穿的孔。
- I told her to pipe down but she still babbled on. 我叫她闭嘴,可她还是唠叨个没完。
- Having no opening; not perforated. 不开口的,不穿孔的
- The pipe burst and a spout of water shoot out. 水管破裂了,一股水喷了出来。
- The tail exhaust pipe of the motor vehicle emitted poisonous smoke. 机动车的尾部排气管排出有毒的浓烟。
- Equipment apparatus to detect end-point water pressure and flow rate in the wet pipe sprinkler system 自动喷水灭火湿式系统的末端试水和流量、压力检测试验装置
- Experimental Research on Optimal Geometrical Parameter of Perforated Pipe 扩张管嘴最佳几何参数的确定
- A free flow of water came from the pipe. 水从管道里通畅地流了出来。