问题:在正常使用时泵的上盖不能打开防止煤尘进入(),柱塞腔盖板应盖好防...
Monday, September 12, 2022
问题:黏度愈大,严重时,可能造成()吸空或发生气穴现象。...
Thursday, September 15, 2022
Sunday, April 7, 2024
问题:若在时间t内,流过管路或液压缸某一截面的油液体积为V,则油液的流量公式为()...
Thursday, January 19, 2023
Thursday, September 15, 2022
Thursday, September 15, 2022
Thursday, January 19, 2023
问题: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
Thursday, September 15, 2022
Thursday, September 15, 2022
问题:为延长气囊式蓄能器的使用寿命,管路最大压力不应超过其最小工作压力...
Sunday, September 11, 2022
问题:简述回液关管振动故障产生的原因和故障排除的方法。...
Thursday, September 15, 2022
Monday, September 12, 2022
问题: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
Thursday, September 15, 2022
Thursday, September 15, 2022
问题:泵站系统处不需要有足够的清洁水源,也能满足工作面用液。...
Tuesday, October 18, 2022
Monday, September 12, 2022
问题: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