flare stack短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 火把烟囱 Offsite flare headers, from the blinding location downstream of process unit knockout drums to the base of the flare stack, shall be pneumatically tested per the applicable Code. 外照明标题，从下游的致盲位置过程股鼓敲除的基础火炬，应气动测试每适用的守则。 tianya