Thursday, September 15, 2022
Thursday, September 15, 2022
液化石油气灌装、倒残等生产车间应通风良好。站场内重点部位应设置燃...
Sunday, September 11, 2022
燃气立管下端应设()A、丝堵B、三通C、阀门D、外丝头...
Wednesday, February 7, 2024
燃气立管下端应设()A、丝堵B、三通C、阀门D、外丝头...
Wednesday, February 7, 2024
根据《城镇燃气设计规范》,向压缩天然气储配站和压缩天然气瓶组供气...
Thursday, September 15, 2022
Thursday, September 15, 2022
调压器出口压力为低压时,允许关闭压力宣小于或等于()倍额定出口压力。A、1.1B、1.2C、1.25D、1.45...
Wednesday, October 19, 2022
根据《城镇燃气设计规范》,城镇燃气高压管道的附件严禁用()制作。...
Monday, September 12, 2022
Monday, September 12, 2022
聚乙烯燃气管道的缺点是()A、重量轻,柔韧性好B、施工方便,不需防腐处理C、使用寿命长D、管材强度不高...
Monday, January 8, 2024
燃气调压装置入口压力大于()的燃气站场,不得设置在地下。A、0.4MPaB、0.6MPaC、0.8MPaD、1.0MPa...
Saturday, February 17, 2024
Thursday, September 15, 2022
Thursday, September 15, 2022
Saturday, February 17, 2024
Wednesday, April 24, 2024
Saturday, April 6, 2024
Saturday, May 11, 2024
Thursday, December 7, 2023
Monday, September 12, 2022