问题:冲击功是衡量钢材韧性,确定钢材是否产生脆性破坏的一个指标。
Sunday, May 28, 2023
Sunday, May 21, 2023
Saturday, October 28, 2023
Saturday, April 13, 2024
Monday, June 12, 2023
Friday, March 8, 2024
Sunday, May 28, 2023
Saturday, April 13, 2024
Saturday, May 4, 2024
Saturday, May 18, 2024
Saturday, September 10, 2022
问题:氮气是无毒的,但处在充满高浓度氮气的容器或区域时,会造成()现象。
Monday, January 1, 2024
Sunday, September 11, 2022
Friday, May 5, 2023
Saturday, November 11, 2023
Saturday, October 28, 2023
问题:在用压力容器应根据设计要求,单独或同时装设安全阀和爆破片作为安全泄放装置。
Saturday, May 4, 2024
Friday, December 16, 2022
Saturday, May 18, 2024
Friday, March 31, 2023