... 起重螺杆，提升螺杆 lift-bolt 升[力]-阻[力]比 lift-drag ratio 1升降机，起重机，堆高机2电磁铁的衔铁3升降杆4提砂钩 lifter ...
基于36个网页-相关网页
... 风能；风力机翼型；升阻比；气动噪声；优选设计 [gap=1255]Key words: wind energy; wind turbine airfoil; lift-drag ratio; aerodynamic noise; optimum design ...
基于24个网页-相关网页
lift drag ratio 升阻比 ; 举阻比
Lift-to-drag ratio 升力 ; 阻力比
subsonic lift-drag ratio 亚音速升阻比
potential lift-drag ratio 势升阻力比
supersonic lift-drag ratio 超音速升阻比
low-lift-drag-ratio approach 低升阻比进场着陆
lift-drag ratio of reentry vehicle 再入飞行器升阻比
In order to investigate aerodynamic characteristics of rocket at different angle of attack and mach number,the finite volume method was used to simulate the flow field of rocket in subsonic,transonic and supersonic flow. The drag coefficient,lift coefficient,pitching moment coefficient,lift-drag ratio and center of pressure with variational angles of attack,mach numbers were given.
为研究不同攻角、马赫数下火箭的气动特性,采用有限体积法,对某型火箭在亚跨超声速来流条件下的流场进行了数值模拟,给出了阻力系数、升力系数、俯仰力矩系数、升阻比以及压力中心随攻角、马赫数的变化规律,结果表明:小攻角和大攻角条件下,阻力系数、升力系数、俯仰力矩系数和压力中心随攻角表现出不同的特性,且与马赫数也有很大关系;不同马赫数下,升阻比最大值基本在2226度攻角范围内取得,等。
参考来源 - 火箭亚跨超声速气动特性数值研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The lift-drag ratio of a typical bat's wing is about 6.8, comparable to that of a pigeon.
电梯拖动的比例，一个典型的蝙蝠的翅膀是约6.8相比，这一个鸽。
A modern sports glider, with long, slender wings, is the most aerodynamically efficient aircraft, with a lift-to-drag ratio of around 50:1.
现代运动用滑翔机的机翼长而细薄，拥有最佳的空气动力学效率，其升阻比达到50：1。
A light aircraft typically has a lift-to-drag ratio of around 10:1; for a hang-glider, the ratio is about 15:1.
一架轻型飞机通常拥有10：1的升阻比；而对于悬挂式滑翔机来说，这个比例大概是15：1。
应用推荐