Saturday, December 24, 2022
问题:单选题()是机件向投影面投影所得的图形。A 三视图B 主视图C 俯视图D 视图...
Tuesday, October 18, 2022
问题:问答题木材厚度上含水率分布不均匀的原因是什么?如何预防?...
Thursday, November 23, 2023
Wednesday, September 21, 2022
Saturday, September 17, 2022
问题:单选题管道泵停车前应()。A 打开吐出管路阀门B 关闭吐出管路阀门C 调节出口阀开度以所需工况D 直接停止电机...
Saturday, February 24, 2024
Sunday, September 18, 2022
问题:单选题Y34-2.7型过滤机的圆盘直径为()米。A 34B 17C 2.7D 5.4...
Tuesday, October 18, 2022
问题:单选题压力变送器连接电缆采用()。A 电力电缆B 护套线C 屏蔽双绞线D 橡套电缆...
Wednesday, July 5, 2023
Tuesday, September 20, 2022
Saturday, September 17, 2022
Friday, November 17, 2023
问题:问答题计算题:用容积为1000毫升壶重200克的浓度壶取矿石比重为4的矿浆,带壶称重为2200克,求该矿浆中重量浓度是多少?...
Saturday, December 24, 2022
问题:问答题浓缩机溢流水发现“跑黑”现象,请分析出可能的原因及其解决方法。...
Tuesday, January 10, 2023
Friday, November 17, 2023
问题:为防止皮带运输机跑偏可将槽形托辊的辊柱在安装时()。...
Wednesday, September 21, 2022
Wednesday, September 21, 2022
问题:单选题隔膜泵的往复运动是由()来驱动的。A 电机B 液压马达C 机械D 风压...
Friday, November 17, 2023
问题:为防止出料管内物料倒流,泵的出料管一般装有()。...
Thursday, September 22, 2022
问题:单选题表面过滤适用于容积浓度大于()的悬浮液。A 10%B 1%C 0.1%D 20%...
Saturday, September 9, 2023