1) ring-wing
筒形涵道机翼
1.
A duct,also known as a ring-wing or an annular airfoil,is the main lifting surface on a lift augmented ducted fan(LADF) UAV.
采用有限体积方法,基于多块结构化的贴体网格,求解预处理形式的NS方程,数值模拟了筒形涵道机翼的气动特性。
2) barrel culvert
筒形涵洞
3) Single rotor autonomous helicopter with ducted fan
单旋翼涵道风扇式无人直升机
1.
For the single rotor autonomous helicopter with ducted fan,the mechanic system of torsional oscillation consists of two engines,clutch,drive system,rotor and fan.
单旋翼涵道风扇式无人直升机的两个发动机,通过由减速器及传动轴等组成的传动系统驱动旋翼及风扇,这些部分联系在一起形成了一个机械扭振系统。
5) airfoil-shaped
机翼形
1.
Experimental research on airfoil-shaped flow flume;
机翼形量水槽的试验研究
2.
Experiment on Airfoil-shaped Measuring Flume in Trapezoidal Canal
梯形渠道机翼形量水槽试验
6) morphing aircraft wing
变形机翼
1.
In order to simulate the bird flying,we design a three-dimensioal morphing aircraft wing.
为了模仿鸟类的飞行,利用杆索柔性机构的杆变形特性和柔性索为驱动,采用结构优化方法设计三维展向变形机翼,使其在各种飞行状态下都能保持最优气动性能。
补充资料:筒形执壶

清代杨彭年制,高9厘米。2000年文物艺术品拍卖会上所拍的几把紫砂壶,价位在2万左右,作者的名气远不及杨彭年。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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