开式

The good design of this device is very important to accomplish flow control and stability of the aircraft construct. The contour of scarfed reversal nozzle has many discontinuous points and a step at supersonic zone. So it can generate a series of expand waves and shock waves, and accomplished with flows separation and reattach.

斜切反喷管作为导弹常用的推力终止装置，能够可靠地完成发动机与有效载荷的分离，它的设计水平对提高导弹命中精度和武器装备的作战性能尤为重要；超声速开式空腔作为流动控制装置，具有减小阻力、增加燃烧混合、延缓边界层分离等作用，但同时也会带来严重的压力波动和噪声，其合理的设计对流动控制的实现以及飞行器结构的稳定性至关重要。

"Live axles are classified according to the manner in which they are supported: semifloating, three-quarter-floating, and full-floating"

断开式车桥根据其承载方式可分为：半浮动，四分之三浮动和全浮动。

"Live axle s are classified according to the manner in which they are supported: semifloating, three-quarter-floating, and full-floating"

断开式车桥根据其承载方式可分为：半浮动，四分之三浮动和全浮动。

Analysis one-way aerodynamic and strength fluid-solid interaction of an unshrouded centrifugal impeller blade under different conditions.

采用非结构化网格有限体积法和有限元方法，进行了不同工况半开式离心叶轮叶片单向气动与强度流固耦合分析。

Flow simulation and performance analysis are conducted for the stage of a high energy head unshrouded centrifugal compressor with vaneless and tandem diffuser respectively using CFD software. The flow field distribution and performance comparison are offered in the two conditions.

使用 CFD 软件对某高能头半开式离心压缩机的级，在分别采用无叶扩压器和串列扩压器时进行了流动模拟和性能分析，给出了两种情况下的流场分布和性能比较。

The numerical results show that:(1) the throughflow wake is considerably influenced by the tip clearance. The low-kinetic-energy fluid accumulated in the shroud/pressure side of the unshrouded impeller, but in the shroud/suction region for 0.0 tip clearance;(2) there possibly exists an optimum size of the tip-clearance which is not the zero tip clearance to make the flow loss minimized.

研究结果表明，(1)NASA低速大尺度离心压缩机半开式叶轮的低速尾迹区在压力面与轮盖的角区，而相应的闭式叶轮的低速尾迹区聚集在轮盖的中心位置；(2)数值实验表明，叶顶间隙并非越小越好，可能存在一个最优间隙，使得叶轮流动损失最小。

Closed system , sealed system , unvented system

参照开式系统9.14。

It is urgent to solve how to produce it efficiently and economically.In this paper, with the guidance of precision forming complex components, basing on the forming theory of obturated-extrusion, combining the technique of hot extrusion, considering the characteristics of steering knuckle, so the one-step precision obturated lateral-bend extrusion forming method and the two-step forming method are presented.

本文以复杂零件的精密成形为指导思想，根据闭塞挤压成形理论，结合热挤压技术，针对轿车转向节零件的自身特点，提出轿车转向节零件的闭塞侧弯挤压精密一步成形法和闭塞侧弯挤压精密预制坯与开式终锻相结合的两步成形法两种工艺。

Cabins on upper deck to be fitted with side-opened weathertight scuttles ofφ350.

上甲板上的舱室安装风雨密侧开式φ350舷窗。

Leading products: open type press, four-pillar hydraulic machine, band saw woodworking sports machine, Shaper and elevated the activities of all-steel anti-static floor five series more than 100 specifications, product sales to 31 provinces and autonomous regions and exported to the United States, Japan, Canada, Russia, Southeast Asia, more than 20 countries and regions, users at home and abroad enjoy a good reputation.

主导产品：开式压力机、四柱液压机、跑车木工带锯机、牛头刨床和全钢抗静电高架活动地板五大系列100多个规格，产品产销全国31个省市自治区，并远销美国、日本、加拿大、俄罗斯、东南亚等20多个国家和地区，在国内外用户中享有良好的声誉。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。