Saturday, September 17, 2022
Sunday, September 11, 2022
问题:从精馏角度分析,影响送入上塔膨胀空气量有哪些因素?...
Sunday, September 11, 2022
Saturday, September 17, 2022
Saturday, September 17, 2022
问题:三角皮带轮孔的中心线与皮带轮的中心线,其偏差不得超过()毫米。A、0.01~0.04B、0.05~0.08C、0.09~0.12D、0.13~0.16...
Saturday, October 8, 2022
问题:压缩气体容器绝对不允许让()接触压缩气体容器的任何部分。...
Saturday, September 17, 2022
Saturday, September 17, 2022
Sunday, September 11, 2022
Saturday, September 10, 2022
问题:碟伐的结构主要由()几部分组成。A、阀座;B、伐盘;C、伐体;D、伐杆。...
Tuesday, April 30, 2024
问题:当实际压力高于大气压力时,绝对压力等于表压力()大气压力...
Sunday, September 11, 2022
Saturday, September 17, 2022
Saturday, September 17, 2022
问题:ZY—33/30氧压机曲轴有三个曲拐,曲拐夹角为()....
Saturday, September 17, 2022
问题:根据管件在管路中的作用:其中用来改变管路的方向统称()。...
Sunday, September 11, 2022
问题:对单一物质来说,在某一压力下,气体的汽化温度即为液体的沸腾温度,...
Saturday, September 17, 2022
Saturday, September 17, 2022
Sunday, September 11, 2022
Saturday, September 10, 2022