30分北京奥运会主火炬的熄火过程,采用遥控电动调节阀技术,等比例调节燃气流量,使火焰逐渐匀速降低直至全部熄灭.主火炬熄火过程所依据的灭火原理是:A.使燃烧物与氧气隔绝B.撤离燃烧物
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![30分北京奥运会主火炬的熄火过程,采用遥控电动调节阀技术,等比例调节燃气流量,使火焰逐渐匀速降低直至全部熄灭.主火炬熄火过程所依据的灭火原理是:A.使燃烧物与氧气隔绝B.撤离燃烧物](/uploads/image/z/4107143-47-3.jpg?t=30%E5%88%86%E5%8C%97%E4%BA%AC%E5%A5%A5%E8%BF%90%E4%BC%9A%E4%B8%BB%E7%81%AB%E7%82%AC%E7%9A%84%E7%86%84%E7%81%AB%E8%BF%87%E7%A8%8B%2C%E9%87%87%E7%94%A8%E9%81%A5%E6%8E%A7%E7%94%B5%E5%8A%A8%E8%B0%83%E8%8A%82%E9%98%80%E6%8A%80%E6%9C%AF%2C%E7%AD%89%E6%AF%94%E4%BE%8B%E8%B0%83%E8%8A%82%E7%87%83%E6%B0%94%E6%B5%81%E9%87%8F%2C%E4%BD%BF%E7%81%AB%E7%84%B0%E9%80%90%E6%B8%90%E5%8C%80%E9%80%9F%E9%99%8D%E4%BD%8E%E7%9B%B4%E8%87%B3%E5%85%A8%E9%83%A8%E7%86%84%E7%81%AD.%E4%B8%BB%E7%81%AB%E7%82%AC%E7%86%84%E7%81%AB%E8%BF%87%E7%A8%8B%E6%89%80%E4%BE%9D%E6%8D%AE%E7%9A%84%E7%81%AD%E7%81%AB%E5%8E%9F%E7%90%86%E6%98%AF%EF%BC%9AA.%E4%BD%BF%E7%87%83%E7%83%A7%E7%89%A9%E4%B8%8E%E6%B0%A7%E6%B0%94%E9%9A%94%E7%BB%9DB.%E6%92%A4%E7%A6%BB%E7%87%83%E7%83%A7%E7%89%A9)
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