By 1978, the use of CFCs in aerosol propellants was banned.
自1978年起，含氯氟烃的喷雾剂压缩气体已被禁止使用。
However, from what I gather, "hybrid" rocket engines use both solid and liquid or gas propellants.
然而我的理解是，“混合动力”火箭引擎同时使用固体燃料和液态或气态推进剂。
The spaceship will be fuelled by a "hybrid rocket" -so-called because it contains both liquid and solid propellants.
飞船将使用液体与固体混合的助推剂作为燃料。
To that end, NASA will spend billions of dollars developing new engines, propellants, life-support systems and the like.
为了那一目标，NASA将花费数十亿美金打造新的发动机、推进器、生命维持系统等等。
But the recent confirmation of water sources on the moon and Mars may hint at a future where ALICE and similar rocket propellants become highly practical.
但是，最近月球和火星有水源的确认可能暗示了ALICE和类似火箭燃料的未来，具相当高的可实践性。
For proper combustion it is necessary to atomize the propellants.
为了有效地进行燃烧，推进剂必须雾化。
This law closely resembles that obtained with conventional propellants.
这种规律非常类似于用普通推进剂所得出的规律。
By 1978, in the USA, the use of CFCs in aerosol propellants was banned.
美国自1978年起禁止在喷雾剂压缩气体中使用含氯氟烃。
Iron oxide may be utilized in achieving propellants of ultrahigh burn rate.
氧化铁可用以制出超高燃速的推进剂。
Three propellants are measured and satisfaction results have been obtained.
测试了三种推进剂并获得满意的结果。
The method is applicable to both metalized and conventional solid propellants.
这种方法既适用于普通的推进剂，也适用于含金属的推进剂。
The combustion mechanism of spheric propellants obtained is discussed reasonably.
论文对所制备球形药的燃烧机理提出了合理的解释。
Closed burner method is used for determining burning rate of the solid propellants.
密闭燃烧器法是一种间接测定固体推进剂燃速的方法。
It is going to be achieved through the use of propellants having negative pressure exponent n.
它将通过采用负压力指数推进剂来实现。
It is a reliable measuring method of the specific impulse for the high-burning rate propellants.
为高燃速推进剂比冲测试提供了可靠的试验依据。
Experimental results show that pressure sensitivity of UHBR propellants may be reduced in this way.
证实用这种方法可以降低UHBR燃烧过程的表观压力指数。
This lays a theoretical and experimental foundation for the development of crosslinked CMDB propellants.
本文为交联改性双基推进剂的研制提供了理论和实验的依据。
This is a comment with 58 references on the plateau combustion mechanism of the double base propellants.
这是一篇关于双基推进剂平台燃烧机理的评论，参考文献58篇。
The combustion performance and energy property of propellants containing nano-aluminum were also studied.
并对含纳米铝粉推进剂的燃烧性能、能量性能进行了测定。
Sampling of propellants under typical operating conditions may be necessary to obtain valid capacitance information.
为了获得有效的容量资料，在典型的工作条件下对推进剂取样是很必要的。
The results show that the cumulative damage of propellants under the different stress levels agrees with linear rule.
结果表明，在不同应力水平下，推进剂的累积损伤基本符合线性累积损伤规律。
The existence of any extender is not necessary for increasing the elongation of HTPB propellants by bonding agent MAPO.
扩链剂的存在不是键合剂MAPO提高丁羟推进剂伸长率的必要条件。
In this paper, the effects of the storage temperature on the ageing characteristics of HTPB propellants have been studied.
本文研究了贮存温度对丁羟推进剂老化性能的影响。
The paper will be useful to structural integrity analysis of grains and to a study of the service life of solid propellants.
该技术和结果对装药结构完整性分析及推进剂储存寿命的研究有重要意义。
The use of chain extenders ACTS as an important way to control the morphological structure of HTPB propellants binder matrix.
把扩链剂的使用作为调整丁羟推进剂粘合剂网络及其形态结构的一个重要手段。
The mechanical properties of propellants formulation, which contains PEO binder and is plasticized by nitrate ester were studied.
对聚氧化乙烯(peo)为粘合剂硝酸酯增塑的高能推进剂配方力学性能进行了研究。
The combustion properties of the RDX modified small size propellants are determined by a closed vessel and analyzed theoretically.
通过密闭爆发器实验测定了RD X改性双基小粒药的燃烧特性，并对实验结果进行了理论分析。
The high temperature reaction centre above the burning surface of the double base propellants and its variety regulation are found.
实验发现了双基推进剂燃烧表面上方高温反应中心的存在和变化规律。
The high temperature reaction centre above the burning surface of the double base propellants and its variety regulation are found.
实验发现了双基推进剂燃烧表面上方高温反应中心的存在和变化规律。
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