Up till now opinions are divided as to the cause of the fire and who was the arsonist.
关于起火原因及纵火者，至今众说纷纭。
Since then, they have been trying to find out how the fire Began.
从那以后,他们一直在设法弄清起火原因。
I regret to report that a fire broke out in our factory stores last night. The cause is not yet known.
本人抱歉报告我厂仓库昨晚发生火灾，起火原因至今未明。
Application of Adopting Spreading-way backward Inference in Stuffiness Top’s Fire
调查蔓延途径逆推起火原因在闷顶火灾中的应用
Cause of the Fire Caused by Electrolytic Capacitor and Characteristics of the Trace
电解电容器引起火灾的原因及其火灾痕迹特征
The lamp was turned over and that was what started the fire.
一盏灯给打翻了，这就是起火的原因。
they have been trying to find out how the fire began.
他们一直试图找出起火的原因。
The police are looking into the reasons for the fire in your house.
警察正在调查你们房子起火的原因。
We are still in the dark about (as to) the cause of the fire
我们仍然不清楚起火的原因。
a firemen accidentally discovered the cause.
一个消防队员偶然发现了起火的原因。
The investigation of fire accident in Quanye underground mall
一起地下劝业商城火灾事故原因调查
The cause of the fire was traced to a faulty fuse-box .
起火的原因已查出是因一个不好的保险丝盒。
The cause of the fire was traced to a faulty fuse-box.
起火的原因已查出是因保险丝盒中有短路。
The fracture is brittle fracture, and the reason is that material of forming dies takes place the temper brittleness.
引起脆性断裂的原因是成型模产生了回火脆性。
Causes of Fire-Induced Building Collapses and Prevention Measures;
火灾引起建筑坍塌的原因分析及预防措施
The Analysis of Boiler Fire Extinguishing Caused by High Drum Level in 600MW Unit
600MW机组汽包水位高引起炉内灭火原因分析
The investigation of anflagration accident in the centre jar area of an oil refinery
一起煤制油品加工车间火灾事故原因的认定
Investigation on the causes and treatment for several direct current motors circle spark failure
几起直流电动机环火故障原因分析及处理