载人飞船的开伞控制方案是回收着陆系统设计中的一个关键环节，它直接关系到飞船回收着陆系统工作的成败。
The control scheme of parachute deployment for manned spaceship is a key part of the recovery and landing system design, it directly affects the success or failure of the recovery and landing system.
文章根据建立的降落伞充气过程中轴向和径向动量方程，研究了低密度大气中降落伞的开伞动载。
The equations of axial momentum and radial momentum are made during the presented inflation of parachute, and the parachute opening load in low atmospheric density is studied on the basis of them.
新型取样式五参数过环空找水仪由温度、压力、磁定位、遥测电路和流量、持水率2个功能短节组成，采用流体取样室开伞集流、收伞取样的方式测量持水率。
A flow-concentrating-sampling annular water detector with 5-parameter consists of circuits of temperature, pressure, magnetic locator, telemetry, as well as 2 cartridges of flow rate and water cut.
运用简化的模型初步分析了在不同大气密度、初始开伞速度下的充气环境对降落伞充气时间、充气距离，伞绳最大拉力的影响。
The influence of atmosphere density and initial velocity on the parachute inflation times, inflation distance and Max strain of suspension-line were analyzed by the simplified model.
除了喷气背包，该公司还致力于快开降落伞，以及一种个人飞行器。
In addition to its jetpacks, the company is also working on a quick-deploying parachute, as well as a personal flying vehicle.
本实用新型公开了一种能够单手开、收的雨伞。它是由伞顶、伞柱、外套筒、伞骨、手握柄构成。
The utility model discloses an umbrella opened-and-closed by one hand, which is composed of an umbrella crown, an umbrella pillar, a cylinder, an umbrella stick and a hand grab handle.
本实用新型公开了一种能够单手开、收的雨伞。它是由伞顶、伞柱、外套筒、伞骨、手握柄构成。
The utility model discloses an umbrella opened-and-closed by one hand, which is composed of an umbrella crown, an umbrella pillar, a cylinder, an umbrella stick and a hand grab handle.
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