问题:车用汽油的理化指标有馏程、辛烷值、饱和蒸汽压、闪点、硫含量()。...
Tuesday, September 13, 2022
Friday, September 16, 2022
Sunday, September 11, 2022
Friday, September 16, 2022
问题:腰轮流量计在使用过程中腰轮不转的处理措施不包括()。...
Friday, September 16, 2022
问题:装卸物料用泵的流量要考虑交通运输部门对()的要求和一次装卸总量。...
Tuesday, September 13, 2022
问题:防爆仪表检修时应检查测试本安回路中的安全栅()。...
Friday, September 16, 2022
问题:拱顶罐附属配件有哪些?作用是什么?(至少5个以上)...
Friday, September 16, 2022
问题:关闭或开启阀门时,()使用长杠杆或长扳手转动手轮。...
Friday, September 16, 2022
问题:螺杆泵输出压力不足时,不能解决问题的方法是()。...
Friday, September 16, 2022
Friday, September 16, 2022
问题:台秤应安置在()上。A、平台上B、坚实的水平地面C、松软的水平面D、有弹性的水平面...
Sunday, February 26, 2023
问题:管线吹扫时,一般通过声音和温度判断管线吹扫是否正常,发现问题应及...
Tuesday, September 13, 2022
问题:液化气槽车紧急切断阀如果油压不上来,说明液压力系统有()。...
Monday, September 12, 2022
Tuesday, September 13, 2022
Monday, September 12, 2022
问题:添加剂是改善油品性能质量的,故多加一些添加剂只有好处,而无坏处,...
Friday, September 16, 2022
问题:粘度比通常是50℃的运动粘度与()℃运动粘度的比值。...
Monday, September 12, 2022
Sunday, September 11, 2022
Monday, September 12, 2022