3 Coal Mine,the blasting result has a good advance through using the second-class water-gel explosive,double-wedge cuthole,extra-deep central hole,back detonation,heightening the cuthole etc,and boring-and-blasting technology in deep-seated and hard rock tunnel is improved.
根据潘三煤矿-810 m硬岩巷道的特点,通过采用二级水胶炸药、双楔形掏槽、超深中心眼、反向起爆、抬高掏槽眼位置等实验,取得了较好的爆破效果。
Through experiment the results prove that the blasting effect of millisecond indirect initiation is good in contrast with direct initiation which adopt instantaneous electric detonator, both blasting efficiency and economical efficiency have predominance.
百善煤矿为提高采煤效率,尝试在采煤工作面实行毫秒延期反向起爆。
The characteristies of the indirect initiation and direct initiation are analyzed.
针对反向起爆的特点,运用分形理论分析,得出反向起爆优于正向起爆的原因在于前者产生的平均压力大,作用时间长,从而增加了岩石的分形数,提高了块度积累率,减小了大块率。
According to the characteristics of moving and stationary stress fields in single face of blasting hole charge,the applying of front and back shooting methods of blasting was introduced to analysis the stress field circumstance,which bas two opposite free faces in the wall.
根据单自由面炮眼装药正、反起爆法中动、静态应力场的特点 ,分析了具有两个相对自由面墙体爆破应力场情况 ,在建筑物拆除爆破工程中综合应用正、反起爆技术 ,提高了拟爆体部位的爆破质量 ,介绍了正、反起爆综合技术的应用方式。
When Al and Ti mixture preforms is preheated at the higher temperature than the start temperature of thermal explosion reaction,coarse particulate of Al3Ti is made by thermal explosion mechanism.
研究发现:Al粉和Ti粉混合预热生成Al3Ti是由Al粉的熔化诱导;在高于热爆起始温度下预热时,Al3Ti直接以热爆反应机制生成;在低于热爆起始温度下预热时,Al3Ti按扩散-热爆反应机制生成。
The temperatures and pressures of CO explosive reaction are calculated according to theformula △U= -0.
119 6n/λ计算了CO在空气中爆炸反应发生时的温度,进而计算了爆炸反应产生的压力。
3%(low limit of explosive reaction),the highest temperature is 1232 K,the highest pressure is 4.
当甲烷在空气中的浓度达到爆炸反应的下限浓度5。
Investigation of Reaction Behavior and Mechanism of Thermal Explosion from Ni-Ti-C System under the Participation of Air;
空气气氛下Ni-Ti-C体系热爆反应行为及机制研究
An exothermic reaction releases heat(energy).
放热反应释放出热量（能）。
Imagine that there is an explosion in the reactor.
设想在反应堆里发生了爆炸。
a weapon whose explosive power derives from a nuclear reaction.
由原子反应来产生爆炸能量的武器。
An atomic explosion is created by setting off a chain reaction.
一连串的连锁反应将引起原子爆炸。
The first explosion tore the reactor vault apart.
第一次爆炸将反应堆的屏蔽室炸飞了。
An atomic explosion is created by setting off a chain reaction in the atom.
原子爆炸是由原子连锁反应引起的。
Fault Tree Analysis Method for the Reaction Containers;
化学反应器火灾爆炸事故树分析研究
Kinetic Study of the Explosive Decomposition Reaction of Small-scale Explosives Using the Time-to-explosion Experiment
用小药量至爆时间试验研究炸药爆发分解反应动力学
laser controlled thermonuclear reactor
激光受控热核反应堆
self-propagating exothermic reaction
自动传播的放热反应
space thermionic auxiliary reactor
空间热离子辅助反应堆
a chemical reaction accompanied by the absorption of heat.
吸热的化学反应过程。
advanced thermal reactor
改进型热中子反应堆
advanced epithermal thorium reactor
改进型超热钍反应堆
STR (submarine thermal reactor)
潜艇用热中子反应堆
internal mass and heat transfer
反应相内传质和传热
external mass and heat transfer
反应相外传质和传热
