泵站的工作压力必须在()MPa以上或按《规程》规定。A、10~12B、10~15C、10~20D、15~20...
Sunday, March 17, 2024
Thursday, September 15, 2022
Thursday, September 15, 2022
Monday, September 12, 2022
金属空心O形圈分为()A、基本型、开孔型B、开孔型、充气型C、基本型、开孔型、充气型...
Wednesday, December 21, 2022
乳化油在地面存放时的室温不应低于()。A、0℃B、2℃C、5℃D、6℃...
Monday, January 8, 2024
液压执行元件是将()的机械装置。A、机械能变为液压能B、液压能变为机械能...
Wednesday, April 3, 2024
根据传输能量载体的不同传动分为()传动、()传动、()传动、()...
Thursday, September 15, 2022
Sunday, July 16, 2023
当使用泵的环境温度()时,停泵后必须将吸液胶管摘下,以防冻坏箱体...
Monday, September 12, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
乳化泵检修后的检验方法应不少于以下四项:即跑合试验、()、超载试...
Thursday, September 15, 2022
Thursday, September 15, 2022
Thursday, January 19, 2023
Thursday, September 15, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
Monday, September 12, 2022