飞机制造专业英语

Although all airplanes are aircraft,not all aircraft are airplanes. 译：虽然所有的飞机都是飞行器，并非所有的飞行器都是飞机。The

1) Although all airplanes are aircraft,not all and return to static flight. 译：在任何变化的条件下， aircraft are airplanes. 译：虽然所有的飞机都是飞 飞机总是试图使相反地作用力相等，恢复静态飞行。 行器，并非所有的飞行器都是飞机。 14） The actions of the physical for__s that 2) The classification begins with categories:within support an aircraft in flight are not visible. 译：支 acategory, specific classes are identified and 持飞机飞行的自然力是看不见的 within aclass, type are identified. 译： 15） For every action there is an equal and 在每个大类可区别出各种小类，每个小类可以区别 opposite reaction. 译：针对每一个作用力与其有一个 各种型号。 大小相等方向相反地反作用力。 3) Hot-air balloons were common in the 16） Only when the __ss of air directed down by nineteenth __ntury and are used today for sport. the wings equals the __ss of the airplane does __ 译：热气球在世纪是普遍的，而今天被用做运动。 the airplane fly. 译：只有当被机翼引导向下流动的 4) Aircraft that use the same method of staying 空气的质量与飞机的质量相等时飞机才能飞行。 aloft and used similar means of propulsion are 17） In fact, relative wind is result of the flight grouped into the some category. path. 译：事实上，相对风是飞行路径的结果。 译：使用同样方法停留在空中，和用相似的推进器 18） The resultant for__ created by an airfoil is __ 装置的器被归为同一大类。 basically in the correct direction for lift. 译：由翼 5） Lighter-than-air aircraft as__nd by displacing a 型产生的合力基本上是在升力的正确方向上 free __ss of he__ier air with an enclosed __ss of 19） In general, the larger the frontal area,the lighter gas 。译：轻与空气的飞行器的上升时用一 higher the drag for__. 译：一般来说，迎风面越大 团密闭的较轻的气体置换一团自由的较重的空气 阻力越大 来实现的。 20） An airplane creates for__s by moving air 6） Propulsion is provided by an engine and molecules around, so naturally those for__s are propeller mounted in either atractor or pusher influen__d by the density of the air. 译：飞机通过 configuration. 译：推进力是由一套发动机和螺旋桨 __ 周围的空气分子而产生的作用力，所以很自然的 __ 提供的，发动机和螺旋桨可以成牵引式或推进式 这些力要收到空气密度的影响 构形。 21） An airfoil stalls any time the critical angle 7） Aglider is an unpowered aircraft with wings of attack is ex__eded. 译：每当临界迎角被超过翼 and atail.: 译滑翔机是一种有机翼和尾翼的无动力 型就会失速 飞行器。 The lateral axis of rotation can be i__gined 22） Airships are powered and h__e controls to 8） as aline tunning from wing tip to wing tip direct their movement. 译：飞艇是有动力的而且有 through the __nter of gr__ity 。译：横向旋转轴可 操作装置来控制他们的运动。 以想象成一条从一个翼尖到另一个翼尖并穿过重 The entire structure of an airplane is called 9） 心的直线。 the airframe.; 译飞机的整个结构叫做机体。 The turning for__ creates an equal and 23） Most modern airplanes are monoplanes. 译：大 10） opposite for__ ,called __ntrifugal for__,in 多数现代飞机都是单翼机。 accordan__ with Newton's Law.: 译按照牛顿定律： The engine and propeller on most 11） 转弯的作用力产生了与其大小相等方向相反的作 single-engine airplanes are mounted on the front 用力叫离心力 of the fuselage. 译：大多数单发飞机上的发动机 Early aircraft engines were big and he__y 24） __ 和螺旋桨在机身前部。 and produ__d barely enough power to justify their Lift and drag are the for__s produ__d by the 12） weight on the airplane. 译：早期的飞机发动机又大 motion of the airplane through the air. 译：升力和 又重，其所产生的动力几乎不足以证明他们在飞机 阻力是飞机在空气中运动时产生的作用力。 上的重量。 13） Under any changing conditions the airplane is 25） Agood pilot is one who not only can fly always attempting to equalize the opposing for__s safely but can converse with these specialists and