pre-burning 预燃 ; [冶] 预烧
pre-burning circuit 磁饱和开关
burning-rate-pre ure curve 燃烧速率压力曲线
pre-fllung burning whereash exposure 特设预闪曝光功能
burning pre ure 燃烧压力
burning rate-pre ure relatio hip 燃烧速率与压力的关系
The pre-industrial carbon dioxide amount was 280 parts per million (ppm). Humans, by burning coal, oil and gas, have increased this to 385 ppm; it continues to grow by about 2 ppm per year.
在前工业时代,二氧化碳含量为280ppm,人类燃烧煤炭和油气的行为使其上升到385ppm,而这一数值还在以每年2ppm的速率增长。
Use of gas and air pre-mixed and then burning to intense burning was carried out and the full and absolute absence of any explosion hazard.
使用时燃气预先与空气充分混合,再进行燃烧,使燃烧进行得剧烈而充分,绝对无任何爆炸危险。
Heat is also extracted from the flue of a log burning stove to pre-heat hot water.
从烟道中提取的热量还可以用于预热水炉。
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