问题:盲板分()和盲通。A、插板B、法兰C、“8“字盲板D、法兰盖
Tuesday, September 13, 2022
Tuesday, September 13, 2022
问题:污水汽提装置换热器E-109管程介质是()。A、硫化氢B、原料水C、蒸汽D、以上都不对
Tuesday, September 13, 2022
Thursday, May 4, 2023
Tuesday, September 13, 2022
Tuesday, April 23, 2024
问题:汽柴油的牌号主要是根据()来命名。A、辛烷值、十六烷值B、抗爆性、凝点C、辛烷值、凝点D、抗暴值、燃烧值
Tuesday, September 13, 2022
Thursday, September 15, 2022
问题:家用液化石油气调节阀中的橡胶制件中应采用耐液化石油气腐蚀的()。A、天然橡胶B、腈基橡胶C、硅橡胶D、人工合成橡胶
Thursday, September 15, 2022
问题:严格工艺纪律就是把()切实有效地控制起来。。A、操作规程B、不合格品C、五大因素D、工艺纪律
Saturday, August 26, 2023
Thursday, September 15, 2022
Tuesday, September 13, 2022
Thursday, September 15, 2022
Saturday, September 10, 2022
Monday, October 3, 2022
Tuesday, September 13, 2022
问题:通过()操作可以断定余热锅炉的液位是否正常。A、调节上水量的大小B、调节余热锅炉的负荷C、叫水D、以上均可以
Thursday, September 15, 2022
Thursday, September 15, 2022
Tuesday, September 13, 2022
问题:已知水泵的流量Qv=238t/h,扬程H=180m,密度ρ=1000kg/m3,水泵轴功率P=200kW,求水泵的效率η。
Thursday, September 15, 2022