Thursday, February 1, 2024
Tuesday, September 13, 2022
Tuesday, September 13, 2022
问题:化工管道的涂色。生产中将各种管道涂以各种不同的颜色,可以使人们很容易的辨别判断各种管道中所盛装的不同介质,即方便操作,又易排除故障或处理事故。工业水管涂()。
Thursday, February 1, 2024
Saturday, September 10, 2022
Saturday, June 17, 2023
Friday, August 4, 2023
Thursday, February 1, 2024
Friday, February 16, 2024
Saturday, September 10, 2022
Saturday, February 18, 2023
Tuesday, September 13, 2022
Friday, April 26, 2024
问题:危险物品作业的特种作业人员包括:危险化学品、民用爆炸品、放射性物品的操作工,灌装运输工,储存保管员。
Saturday, September 10, 2022
Tuesday, November 1, 2022
Friday, February 16, 2024
Saturday, September 10, 2022
问题:物体的加速度的大小与物体所受到的()的大小成正比,与它()成反比。
Saturday, July 22, 2023
Thursday, April 20, 2023