抗爆

Synthesis, Characterizations and Gasoline Antiknock Properties of Transition Metal Complexes

在环保和节能的推动下，必须有更经济高效的无铅化汽油抗爆剂来满足人们对高辛烷值汽油的需求。

Development circumstances, characteristics, antiknock performance, syntheses and economic benefits of MMT are introduced in details and compared with tetraethyl lead. The significance and feasibilities of using MMT in our country are pointed out.

对MMT的发展状况、基本性质、抗爆性能、合成方法及经济效益等作了较详细的介绍，并与烷基铅进行比较，指出了MMT国产化的意义与可行性。

By analysing the hidden dangers of gas-fired boiler room in system of burning,leak of gas and system of steam-water,the paper presents some safety measures considered during designing of blast shelter,gas pipeline,aeration and fire controlling of boiler room,and advanced some prevention measures to realize the safety run.

从燃烧系统、燃气泄漏、汽—水系统三方面分析燃气锅炉房的安全隐患，提出工程设计时在抗爆卸压、燃气管道及通风与消防等方面应考虑的安全措施，并提出了预防锅炉房事故发生的值得注意的问

Gasolinecontained 67.8% aromatic hydrocarbons, 21.47% olefins and a small quantityof alkanes and cycloparaffin hydrocarbons. The enlarging study on blending feed of vegetable oil and petroleumfraction was performed in a Two-Stage Riser.

通过优化各种因素，植物油的转化率达到81.18%，丙烯产率达到19.52%；汽油的产率为30.58%，其中含有67.87%的芳烃、21.47%的烯烃，以及少量的烷烃和环烷烃，其研究法辛烷值为90.3，抗爆指数为83.9。

It can simulate and calculate dynamic characteristics of functional transformation plan during wartime.

使可对现有普通大楼地下室及其功能转换方案的抗爆动力性能较为合理地进行模拟和计算。

For evaluating the structure strength of ship electric motor,the dynamic response of air explosion to entire electric motor was calculated by fluid-structure coupling algorithm in LS-DYNA code.

为了对舰用电机进行抗爆能力评估，使用流固耦合算法和显式动力分析软件LS-DYNA对整个结构进行了空中爆炸的数值模拟。

According to the relationship between the thickness and the location, a typical complex protective structure is presented, and a series of numerical simulations are conducted to research the structure response and anti-blasting performance of this typical structure.

根据研究成果，提出了一种新型复合防护结构形式及结构参数，并对该复合防护结构的结构响应及抗爆性能进行了数值模拟研究。

The additive with high octane number to light oil improves the quality of li ght-oil based fuel greatly.

轻油高辛烷值调和剂显著提高了轻油基燃料的抗爆性，使火花点火式发动机可采用较高压缩比工作。

The result proved that the warship would be badly damaged on ship side in such condition.

系统研究了舰艇舷侧防御结构在水下爆炸载荷作用下的破坏机理，并对防雷舱进行水下抗爆设计。

For leting drop qu***ty fuel plenty of normal heptane have no lead tetraethyl , Therefore be unlikely there not be the lead pollution .

因为低品质燃料多含正庚烷而不含抗爆剂四乙基铅，所以绝对不会有铅污染。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。