火箭推进剂

Liquid propellant rocket engine ; Monitoring ; Fault diagnosis

液体推进剂火箭发动机；监控；故障诊断

Fluent software was used as a calculaˉ tion platform, and its UDF compiler was used to inject mass, mome ntum and energy of ignition gas and propellant gas into chamber. Combining with kˉε twoˉequation turbulence model and Pˉl radiation model, the 3ˉD nume rical simulation of ignition transient process of some solid rocket motor with st arˉshaped charge and a cove was conducted.

文中以Fluent软件为计算平台，采用UDF编译来实现点火燃气和推进剂燃气的质量、动量、能量向燃烧室的注入，结合 kε两方程湍流模型、 P l 辐射模型对某有堵盖的星形装药固体火箭发动机的点火瞬态过程进行三维数值计算。

Propellant burning rate ; Engine test ; Parametric analysis ; Prediction technique ; Solid rocket engine ; Measurement

推进剂燃速；发动机试验；参数分析；预测技术；固体火箭发动机；测量

After the attack, enough rocket engine propellent was retained to escape and land on the built-in landing skid.

袭击事件后，足够的火箭发动机推进剂保留逃生，及土地上内建在登陆防滑。

Propulsion system ; liquid rocket engine ; near space vehicle ; bipropellant

推进系统；液体火箭发动机；近空间飞行器；双组元推进剂

Fortunately, it is no longer necessary for the interested amateur rocketry enthusiast to have to write such a program for the combustion analysis of a particular propellant, as there is software available that will do this job admirably and with great flexibility -- such as PROPEP, GUIPEP , or CET, which will be discussed later.

幸运的是，它不再是必要的，为有兴趣的业余火箭爱好者有写这样一个计划，为燃烧分析某一推进剂，因为有可用的软件将做这项工作，令人钦佩，并与出极大的灵活性-如p ropep， guipep ，或大学英语，这将在后面讨论。

We shall try by means of a highly simplified development to expose certain advantages and disadvantages of solid propellant rocket systems.

我们想通过相当简单的推导来试图阐明固体推进剂火箭系统的某些优缺点。

The liner is a polymeric elastomer coating between propellant and insulation layer or case.The liner-forming is a special step in production of solid rocket motor.

衬层是推进剂与绝热层或壳体之间的高分子弹性体涂层，衬层成型是固体火箭发动机生产中的一种特种工序。

Today Vega consists of three solid motor stages and its AVUM fourth stage that uses storable propellant.

目前的"织女星"火箭由三个固体发动机级段组成，它的AVUM第四级使用易贮存的推进剂。

EDT. The vehicle's second stage was loaded with storable propellants on Monday.

火箭的第二级已经在周一加注推进剂。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。