Saturday, December 23, 2023
Saturday, September 10, 2022
Saturday, September 10, 2022
Saturday, December 23, 2023
问题:管式炉轻油冷却温度应()℃。A、小于40℃B、在40-70℃间C、在50-70℃间D、在50-60℃间
Saturday, September 10, 2022
问题:吹苯塔后必须()。A、洗涤B、精馏C、用碱中和D、加热
Monday, May 20, 2024
Saturday, September 10, 2022
Saturday, September 10, 2022
Saturday, September 10, 2022
Saturday, September 10, 2022
Saturday, September 10, 2022
Sunday, November 27, 2022
问题:通常情况下多采用()这一化工单元操作方式对混合物加以分离。
Saturday, September 10, 2022
问题:计算题:某蒸馏塔回流比为4%,产品量为200t/h,问其回流量为多少?
Saturday, September 10, 2022
Saturday, September 10, 2022
Tuesday, November 14, 2023
问题:某仪表的允许误差为0.5%,则该仪表的精度为()级。A、0.5B、5C、0.5
Thursday, March 21, 2024
Saturday, September 10, 2022
Tuesday, August 1, 2023
问题:下列哪个原因不会造成亏库()。A、储槽内甲醇温度太高B、售醇称重地磅不准C、就地液位计显示偏低D、就地液位计显示偏高
Saturday, September 10, 2022