火线长度 meaning in Chinese

fire perimeter

From the result of simulate calculation the guangzhou ' s eight times forest fire , the accuracy of simulated fire area is more than 90 percent , so the model can simulate the fire area and the length of the fire accuracy
从广州市8宗森林火灾的蔓延模拟结果看，过火面积的模拟精度约90 % ，能较准确地模拟林火发生时的过火面积和火线长度。
The model can be made into difference equation of the temperature field that can be used to simulate calculation ; then we can get the set of edge point , and we can have the function of the fire line , and we can also have the burned area , the length of fire line and the space of fire area ; it also come to the conclusion that the main factor of forest fire is convection heat transfer
经差分处理，得到进行模拟计算的一组温度场计算方程；由边界点条件，求出边界点的集合后，拟合得出火线函数，积分后可得到时刻火场的过火总面积、火线长度和火场形状，同时进一步证实了对流传热方式是影响林火蔓延的主要因素。