查询词典 explosion wave

Key words: safety engineering; gas explosion; shock wave; overpressure; transmission law

关键 词：安全工程；瓦斯爆炸；冲击波；超压；传播规律

The ionosphere that part of the atmosphere between 65 and 80 km and 280- 320 km height, will be disrupted by mechanical forces caused by the pressure wave following the explosion.

电离层在65-80公里和 280- 320 公里之间高度的大气那一部分，将被随着爆炸产生的冲击波的机械力所扰乱。

Experimental study on the injury of peripheral vessels nerves and muscles in rabbit's limbs by explosion shock wave.

目的：观察爆炸冲击波致肢体血管、神经及肌肉造成损伤的病理特点，为四肢战伤救治、预防并减少并发症提供理论依据。

Approximate calculation of underwater explosion shock wave propagation［J］.

水下爆炸冲击波传播的近似计算［J］。

The study results show that the attenuation of explosion stress wave is more rapid in the concrete plank, compared with that in the infinite concrete medium.

研究结果表明，与无限混凝土介质相比，爆炸应力波峰值在混凝土板中衰减较快。

Safety distance ; gas explosion ; shock wave

安全距离；沼气爆炸；冲击波

In the damage zone parameters of rock mechanics get worse because of the actions of blast stress wave and explosion product,and this may produce potential dangers to the preserved rock and the constructions built on it.

在该区内，爆炸应力波和爆生气体的联合作用使得岩石力学参数劣化，给岩体及其岩体建筑物的安全运行留下了隐患。

Air shock wave; explosion; propagation rule

空气冲击波；爆炸；传播规律

A volcanic island of Indonesia between Sumatra and Java. A violent explosion in August1883 blew the island apart and caused a tidal wave that killed more than36,000 people.

喀拉喀托火山位于苏门答腊和爪哇之间的一个火山岛。1883年8月，该岛火山的一次猛烈的喷发使该岛裂开，并引发了一场使36，000多人丧生的海啸 3。

Using Field single ignition experiments of the four unconfined volume dispersion and small dosage solid FAE and TNT bombs experiments, we got the peak overpressures of solid FAE at different distances. Compared with TNT, The overpressure of FAE is 1.14~1.6 times higher than that of the TNT. Based on the theory of the air shock wave overpressure, the FAE relativity TNT mass is evaluated. At the edge of the explosive field, the number is 3.88. Pictures of high speed photography indicate that the duration and the most effect area of the FAE and TNT. Compared with TNT, obviously the FAE has more advantages. And, based on the theory of the critical concentration of dust explosion, the radius of dust explosive zone is evaluated. The phenomenon that the overpressure decays rapidly with distance is analyzed. It is suggested that the explosive temperature should be increased as the main approach to improve the FAE explosive capability in the condition when the over pressure is invariable.

通过四组无约束固态燃料空气炸药装置与等质量的TNT在野外开放空间的一次起爆对比实验，测得了不同配方组份FAE装置在不同距离的爆炸超压分布，FAE装置峰值超压比相同距离的TNT高1.14-1.6倍；并运用空气冲击波峰值超压公式计算出了FAE的等效爆炸TNT当量随距离的变化关系，在爆炸场边缘区，FAE装置爆炸当量达到了3.88倍TNT当量；通过高速摄影的图片得到了爆炸产生火球的持续时间和最大作用范围，与等质量TNT爆炸火球相比，FAE的优势明显；运用粉尘爆炸下极限浓度估算了云雾爆轰区半径，并分析了测量到的固态FAE爆炸场的压力分布单调衰减的原因；建议在保持超压不变的情况下，把提高爆温作为提高FAE爆炸性能的主要途径。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。