单词:unloader (pilot) valve
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Part 13 Ballast handling 1. Scuppers plugged. 2. Open sea suction valve and report. 3. Sea suction valve closed. 4. Ballast pump stopped.
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EXPLORATIONS - Jimmy Doolittle: a Pilot and Leader EXPLORATIONS, a program in Special English on the Voice of America. Today Shirley Griffith and Frank Oliver tell about a famous World War Two pilot, Jimmy Doolittle. He was a scientist, an airplane e
By David McAlary Washington 03 May 2007 Astronaut Walter M. Schirra Jr. is shown posed for a studio portrait in his space suit in this June 1962 file photo One of the first U.S. astronauts and only the fifth American in space, Walter Schirra, has die
turn on 打开,使某人产生兴趣,使兴奋 Do you want me to turn off the TV? 你想要我关电视吗? Turn off the lights before you come to bed. 在上床之前记得关灯。 You have to turn the gas valve off before going out. 你出门前