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- long base drag 长刀刮路机
- Then, the base bleed method is introduced on a general supersonic missile to decrease the base drag of the inlet cowl for the first time and is validated by wind tunnel test. 本文首次将底部排气法应用于导弹上,结合一种具有常规气动布局的超声速导弹进行了底部排气方案设计,采用一种“底窝器”来提高进气道整流罩的底部压强,并进行了风洞实验验证。
- It is shown that reducing the base drag of projectile and increasing the range of it are possible by means of base bleed burning in subsonic and transonic speeds. 说明在亚、跨声速下采用底排燃烧的方法仍可有效减少弹丸底部阻力增加射程。
- Leitz long base shoe rangefinder, black &nickel, large wheel with scale in metres FOFER, 220US$. 徕卡测距仪FOFER黑漆,大盘长杆,成色不错!测试盘上测试最近距离1米,工作正常,1500元
- To minimize the base drag and obtain optimized result of drag,it is important to select correctly the stern length,stern angle and base bleed parametres. 使用优化设计方法,正确地选择船尾长度、船尾角以及底排装置的各种参数,使其后体阻力最小,达到最佳减阻效果,求得这些参数的优化结果
- The long base width and steep slope of super high arch dams have make it difficult to control the temperature when adopting full-silo casting method. 摘要特高拱坝由于底宽大、岸坡陡,故采用通仓浇筑时施工期的温度控制难度大。
- The research of this article mainly focuses on the technicals of the design of low power consumption acoustic transponder, and the realization of the platform of long base line transceiver. 本文的研究工作主要集中在水声应答器的低功耗设计,以及实现该长基线定位方案的舰载基站平台设计。
- The paper presents an engineering calculation method for the base drag of base bled projectiles based on the base drag reduction characteristics duo to base burning of fuelrich solid fuels. 给出一种以固体燃料底排减阻特性为基础的底排弹底阻工程估算方法。
- He contemplates the cross sections where society, history and human desires meet with each other, on which he has long based his dynamic sculptures. 他常常将他的作品弃置于自然环境的某个荒野中,或者将他所创作的作品进行破坏性的公开表演。
- There was a long lag in forwarding mail to us. 转寄给我们的邮件晚了很久才拿到。
- You can keep my book as long as you like. 我的书你要借多久都随你的便。
- Fruit juices ferment if they are kept a long time. 果汁若是放置很久,就会发酵。
- The beggar spun a long yarn about his misfortunes. 那个乞丐编造了一大篇自己如何遭遇不幸的故事。
- Agriculture in Europe and the US is no longer based on traditional methods. 欧洲和美国的农业不在基于传统方式耕种了。
- Long Base Underwater Navigation System 长基线水声应答器导航系统
- How long will our food supplies hold out? 我们的储粮还能维持多久?
- It was a long trudge up the hill. 那段上山的路很难走。
- Bowman J E, Clayden W A. Reduction of base drag by gas ejection. RARDE Rep.4169 丁则胜;罗荣;陈少松.;底部燃烧减阻性能的若干参数影响研究
- Mr Jones has a long history of heart trouble. 琼斯先生有长期的心脏病史。
- Cream cakes are no long a luxury. 奶油蛋糕再也不是奢侈品了。