您要查找的是不是：
- Application in Engineering of Fire - extinguishing System of Septenary - Fluorine Propane 七氟丙烷灭火系统在工程中的应用
- Application of fire extinguishing system with seven fluorine propane gas to archives of Air China 七氟丙烷气体灭火系统在国航档案馆工程中的应用
- Keywords seven fluorin propane fire extinction system;Harlong;fire extinction mechanism;design of system; 七氟丙烷灭火系统;哈龙;灭火机理;系统设计;
- Propane may also be used as LPG. 丙烷也可用作液化石油气。
- It is a compound of aluminum, silica, and fluorine. 它是铝、硅和氟的化合物。
- How come we've been using propane, and nobody knew? 为什么我们实际上已经在使用丙烷，但是确没人知道?
- A binary compoundof fluorine with another element. 氟化物氟与其他元素组成的二元化合物。
- If you use green gas, you're already using propane. 如果你已经在用绿气了，实际上你已经在用丙烷了。
- Fluorin can avoid brown striation and whiten skins. 氟能消除褐色斑,使皮肤变白。
- So it's really propane? How can you be sure? 那么你怎么确定它就是丙烷的呢?
- CFCs are chlorine, fluorine and carbon polymer. 含氯氟烃是氯、氟及碳的聚合物。
- By itself, propane has very little smell. 而丙烷本身的味道很小。
- A binary compound of fluorine with another element. 氟化物氟与其他元素组成的二元化合物
- Available in R22, R497C and R290 (propane). 可在r22的，r497c和r290的（丙烷）。
- Dalian Botai fluorin Materials Co.Ltd. 大连博泰氟材料有限公司。
- All sorts of chemical industry special type such as oil gas of ethane of fluorine Lyons, 2 fluorine, firedamp, ethane, propane, natural gas, oily fossil gas. 氟里昂、二氟乙烷、甲烷、乙烷、丙烷、天生气、油石头油田等各类化工特殊气体。
- The fluorine does not accumulate indefinitely in the water. 氟不会在水里无限制地积累。
- So, why should I fill my gun with propane instead of green gas? 那么为什么我要用丙烷来替代绿气?
- And this is what happens when lightning hits a propane tank. 当闪电击中丙烷气罐，就发生（看到的）情景。
- How come green gas smells different than fuel propane? 为什么绿气闻起来和燃料丙烷不同?
