step rocket

The Distribution Research on Step Propulsion Rocket

阶梯推力火箭的散布研究

Step 3 Rollthe large triangle so that two of its sides touch and it forms a rocket's nose cone.

第三步：滚动大三角形，使其两边接触，使大三角形成为火箭的鼻锥。

Using k-ε turbulence model and one step eddy-dissipation model, numerical studies on the reacting flow field of solid rocket ramjet with secondary air inlets were carried out. Influence of mass flow ratio on combustion efficiency and temperature field was analyzed.

采用k-ε湍流模型及单步涡扩散化学反应模型，对二次进气结构的固体冲压发动机补燃室的反应流场进行数值模拟，分析了二次进气流量比对燃烧效率与温度场分布的影响。

Step of important rocket competition yesterday top melee, Badier have not overtaken!

火箭昨天比赛的顶级大混战, 巴蒂尔没赶上 啊 !

Built in several pieces, the rocket is called a step rocket.

因为火箭是分成几节制造的, 所以称为多级火前.

As the step rocket goes up, some of the stages at the side fall away.

当多级火箭上升时, 边上的几级火箭就脱落了.

But take a step back: that rocket, the Falcon, and capsule, the dragon, were built by a private company called SpaceX.

不过让我们把视线拉远一点：此次发射的猎鹰9号火箭以及宇宙飞船“龙”都是一家美国私人公司的产品。