It is of great military significance to identify propeller-driven aircraft using the active service radar.
用现役雷达识别螺旋桨飞机具有重要的军事意义。
As an example, the order of magnetic anomaly induced by the wake of propeller-driven body has been estimated.
作为例子，对水下旋成体尾流引起磁异常的大小进行了量级估计。
Its fish-like method of propulsion reportedly makes it quieter than a propeller-driven craft of the same size.
及其鱼肉状的推进方法据说使得它比相同大小的一个螺旋桨驱动的工艺更安静。
Under these conditions, flapping, birdlike flight might well have some benefits over propeller-driven or helicopter flight.
在这种情况下，拍击，像鸟儿一样飞可能比螺旋桨推进飞行要好些。
Military technology: Small, slow but much less costly, propeller-driven planes are starting to displace fancy fighter jets, for a variety of reasons.
军事技术：出于各种原因，小型、低速，但花费要少得多的螺旋桨飞机开始取代昂贵的喷气式战斗机。
The first propeller-driven airship, built by Henri Giffard, flew in 1852 in France; design improvements led to construction of the rigid zeppelin (1900).
第一艘成功的飞船是法国的吉法尔于1852年制造的，后来经过不断的改进，导致1900年齐柏林飞船的建构。
In an effort to address that problem, the European Union TRACT project is developing a propeller-driven inspection robot that keeps the pipe-touching to a minimum.
在努力解决这一问题，欧盟TRACT项目正在开发一种螺旋桨驱动检测机器人，保持管道，触摸到最低程度。
THE small propeller-driven plane piloted by Peter Szapary, an Austrian count turned Kenyan flower farmer, banked and flew low over the Rift Valley town of Naivasha.
彼特•斯扎帕里（Peter Szapary）是一位成为肯尼亚花农的奥地利伯爵，他驾驶着自己那架小型的螺旋桨驱使的飞机在东非大裂谷的内瓦沙镇的上空倾斜而过并保持着低空飞行。
This ship is an aluminum alloy welded catamaran passenger vessel, using symmetrical semi-hull, single deck, upper lower cabins and propeller driven.
本船为铝合金焊接双体客船，采用对称片体，单层甲板，设上下客舱，螺旋桨推。
The optical force and torque of a micro-propeller-shaped rotor driven by TEM00Gaussian laser beam are calculated with a geometric-optics model.
在几何光学模型近似下，对用TEM 00高斯激光束驱动微型螺旋桨结构的光驱动力和力矩进行了理论计算。
According to the controlling requirement of megawatt wind driven generator with variable propeller pitch of horizon axis, the hydraulic control system of a variable propeller pitch is designed.
针对兆瓦级水平轴变桨距风力发电机的控制要求，设计了变桨距液压控制系统。
The booster for swimming is characterized in that the propeller is driven to rotate by utilizing pedaling force of legs and feet. Thus, the great thrust is generated.
这个游泳助推器就是用腿、脚的蹬力带动螺旋桨旋转，产生较大的推力。
The booster for swimming is characterized in that the propeller is driven to rotate by utilizing pedaling force of legs and feet. Thus, the great thrust is generated.
这个游泳助推器就是用腿、脚的蹬力带动螺旋桨旋转，产生较大的推力。
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