But in the fuel lean and fuelrich explosive gas, the electrical conductivity increases gradually from bottom to top.
贫燃料与富燃料爆炸气体中，由管道底部向上，其电导性是逐渐增大的。
2
For indirect ignition method, the condition of fuelrich ignition torch was studied in contrast with the condition of fuel lean ignition torch.
在间接点火方案中对点火火炬为富燃和富氧两种情况进行了对比分析。
3
Using fine diameter boron, coating boron and adding other ingredient into the boron based fuelrich propellants can increase employed efficiency of boron.