Accidents of secondary fire explosion caused by improper command or fire suppression technology often occurred during the suppression of chemical fires.
在扑救化工火灾中，因指挥、战术不当等引起二次爆炸伤人的事故。
Dozens of cars caught fire, causing a string of secondary explosions.
数十辆汽车着火并引发了一连串的二次爆炸。
Fire Safe - Secondary metal-to-metal seal ACTS as backup if primary seal is destroyed by fire.
防火安全-如果第一个密封被火烧坏，则第二个金属对金属密封作为后备密封发挥作用。
The metal-to-metal seat ensures tightness if the secondary elastomer seat is damaged during the fire.
如果第二重合成橡胶阀座在火灾期间被损坏，则金属-金属阀座还可以保证气密性。
French officials say a fire in the Channel Tunnel is now largely extinguished but firefighters are still working to lower the temperature and cool down secondary blazes.
法国官员说，连接英国与法国的海底火车隧道的大火已经基本扑灭，但是消防人员仍然在努力降低温度并熄灭后续引发的火焰。
Valves feature as standard secondary metal-to-metal seal in the event of the primary seat being destroyed by fire.
作为标准配置，阀门具有第二个金属对金属密封，以防万一第一个密封被火毁坏。
The secondary disasters often take place following the destructive earthquake, such as poison gas leakage and diffusion, fire, blast, etc.
破坏性地震伴随发生的火灾、毒气泄漏与扩散、爆炸等次生灾害所造成的损失不容忽视。
The primary arc beads and the secondary arc beads are the important evidence for identification of the cause of fire during airplane electrical fire investigation.
一次短路电弧熔珠和二次短路电弧熔珠是飞机电气火灾原因鉴别的重要物证。
This paper numerically investigated the basic conditions and possibility of the secondary disaster in the coal mine caused by the mine fire in the laneway.
本文采用数值分析方法研究井下掘进巷道内火灾所导致的继发性灾害发生的条件。
When LPG tanks are exposed to external fire, their temperature and pressure will increase rapidly, which may cause the tanks exploding and lead the secondary hazard with much more damage.
液化石油气储罐在火灾作用下，其内部的温度和压力迅速上升，从而会引起储罐爆炸，进而酿成危害性更大的二次灾害。
The swirl number of secondary air has a great influence on the combustion. When swirl number is small(S<0.8), the fire is long, and may rush the back wall.
二次风旋流强度的变化对炉内燃烧影响较大，旋流数过小时（S<0.8），火焰将冲刷后墙；
In the pathogenesis of AA, the deficiency of spleen and kidney is the primary aspect, fire attacking blood vessels is the secondary aspect and there is change because of blood stasis.
再障的发病机理主要是脾肾亏损为本、火伤血络为标和瘀血内停为变。
Firstly, the velocity of target was educed from the secondary calibration to correct the collimation error, and the incorporated wind speed was introduced to simplify the model of fire control.
首先，运用二次标定法计算得到目标速度， 用以修正火控瞄准误差，并引入综合风速来简化火控计算模型；
Firstly, the velocity of target was educed from the secondary calibration to correct the collimation error, and the incorporated wind speed was introduced to simplify the model of fire control.
首先，运用二次标定法计算得到目标速度， 用以修正火控瞄准误差，并引入综合风速来简化火控计算模型；
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