Wednesday, February 19, 2025
问题:站内工艺管道设计压力小于0.4MPa时采用的钢管应符合哪些国家现行规定?...
Friday, September 13, 2024
Tuesday, April 18, 2023
Saturday, March 29, 2025
Tuesday, July 30, 2024
Thursday, January 11, 2024
问题:一氧化碳无色无味,比空气轻,易于燃烧,燃烧时呈()火焰A、黄色B、蓝色C、红色...
Friday, September 13, 2024
Sunday, May 26, 2024
Saturday, June 21, 2025
Friday, January 19, 2024
Thursday, June 26, 2025
Saturday, June 21, 2025
Saturday, July 5, 2025
Sunday, February 16, 2025
Thursday, May 15, 2025
Saturday, March 29, 2025
Saturday, July 5, 2025
问题:门站中对调压装置每一路须相同或相类似的设计。当其中一路关上时,其余各路 应仍可以()进口压力及()出口压力满足最高流量值。A、最高、最低B、最低、最高C、最低、最低D、最高、最高...
Tuesday, August 27, 2024
Saturday, June 21, 2025
Sunday, February 16, 2025