火焰温度较低，因而可使炮管寿命较长。
The flame temperature is lower, thus giving a longer barrel life.
我们的炮管将会轰鸣。
将步兵战车停置于平坦的地面上，使炮管处于水平状态；
Place infantry fighting vehicle on even ground to make gun barrel in a horizontal position;
将步兵战车停置于平坦的地面上，使炮管处于水平状态；
Place infantry fighting vehicle on even ground to make gun barrel in a horizontal position;
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