查询词典 propellant

Carbon black is an opacifier which prevents radiant energy transmission to the interior of the propellant.

炭黑是不透明的，可以防止辐射热传到推进剂内部。

According to the characteristic of non uniform burnable thickn ess grain propellant, the grain form functions of two elements and three elements polynome are derived and compared.

根据所用粒状药内外弧厚不同的特点，推导了该粒状药二项式与三项式的形状函数，并进行了比较。

Liquid propellant rocket engine ; Precombustion chamber ; Turbulence model ; Three dimensional flow ; Numerical simulation

液体推进剂火箭发动机；预燃室；湍流模型；三维流；数值仿真

With the development of combustion research and the temperature measurement as well as relevant techniques, the flame temperature measuring techniques begin to enter the common industry fields from labs, and extend to the aviation and aerospace industry. At the beginning of the 1980s, the Ijumdien Institute in Holland began to develop many industry flame temperature measurement installations based on thermal couples. And later, the National Aerospace Administration also successfully employed the Coherence Anti-stokes Raman Stokes in the flame temperature diagnostic of the precombustion chamber of space shuttle main engine (SSME, liquid H〓/O〓 propellant).

随着燃烧研究的深入和温度测量及其相关技术的不断发展，从1980年，火焰温度测量技术开始由实验室走向工业现场、从一般工业现场走向航空航天领域：欧洲以荷兰的Ijmuiden研究所为代表，研究开发了很多基于热电偶的工业燃烧火焰温度测量装置；美国国家航天局则成功地将相干拉曼斯托克斯方法用于航天飞机的主发动机（SSME，液氢液氧发动机）预燃室燃烧火焰温度诊断上。

Existing calculation methods for burning surface don't well agree with the experimental data with complicated grain. In order to eliminate the error, tests data are used to correct the prefigurative result generally, and it is impossible to calculate burning surface of grain with crack.debond and wtith changing burning rate of propellant.

目前现有的固体装药燃面算法，在计算复杂装药燃面时仍有较大误差，为消除这种误差往往需要用试车结果给予修正；同时在计算含缺陷装药燃面和处理装药因批次燃速变化时的燃气加质更是束手无策。

The liner for double-based propellant was prepared from HTPB,toluene diisocyanate,diisooctyl sebacate,1,4-butanediol and mica.

以端羟基聚丁二烯、癸二酸二异辛酯、1，4 丁二醇、绢云母、甲苯二异氰酸酯等为原材料，制备了双基药柱用包覆层。

At last,according to the identification,with the oneˉdiˉ mensional unsteady methods, the internal ballistics performance of S RM with highˉoctane propellant during storage was researched, and compared the calculated date with the testing dat a, the result showed the model and methods were reaˉ sonable and effective.

基于参数辨识，采用一维非定常模型对高能固体推进剂贮存条件下发动机内弹道性能进行了预示，并与试验结果进行了比较分析，计算表明所建模型合理，方法有效。

When the gas generator is loaded by fuel rich propellant with high exponent, the unchoked ducted rocket can almost be worke...

贫氧推进剂的燃速压强指数越高，非壅塞固体火箭冲压发动机燃气流量的自适应调节能力越强。

The results showed that the performance of unchoked ducted rocket is superior to that of choked one. When the gas generator is loaded with high burning-rate exponent fuel-rich propellant, the performance of unchoked ducted rocket is almost the same as that of the ducted rocket working under fixed mass ratio of fuel to air.

研究结果表明：非壅塞固体火箭冲压发动机的性能显著优于燃气流量不可调的壅塞式固体火箭冲压发动机；当贫氧推进剂具有高的燃速压强指数时，非壅塞固体火箭冲压发动机的性能接近燃气流量完全调节、以等空燃比工作的冲压发动机性能。

A new kind of high-performance fuel-rich propellant, which is used for the unchoked solid ducted rocket, has been developed.

详细

The teacher likes the honeymouthed little girl very much.

老师很喜欢这个嘴甜的小姑娘。

Mr. Notker Bien's interests are traveling, spending quality time with the family and long-distance-running.

诺特卡·柏恩先生热爱旅游，长跑，以及和家人一起共度美好时光。