The hot air permitted higher speeds before the critical Mach number was exceeded.热空气可使之在超过临界马赫数之前达到更快的速度。The hot air permitted higher speeds before the critical Mach number was exceeded...热空气可使之在超过临界马赫数之前达到更快的速度。The aim ...
The hot air permitted higher speeds before the critical Mach number was exceeded.热空气可使之在超过临界马赫数之前达到更快的速度。The aim is to fly at about Mach 2, twice the speed of sound.目标是以大约2马赫的速度飞行，也就是音速的两倍。Empirical results are needed in...
Instructors read slowly and students copied down what was said.老师慢慢地念，学生们把所念的记下来。Instructors decided he would never make a pilot.教练断定他永远也当不了飞行员。The instructors were slacking on the job.教员们对工作松松垮垮....
塔外原筑有围墙高丈余, 墙上附有石碑多件.Tower, the original walled high - Zhang Yu, a wall with stone pieces.这个园子有围墙.The garden is walled.图森市一开始时是一座有围墙的要塞.Tucson was first settled as a walled presidio....
Deciduous shrub style such as lilac, spirea, hydrangea, etc.落叶灌木类,如丁香 、 绣线菊 、 绣球花等.Horsetail is often combined with Hydrangea in the treatment of prostate troubles.问荆常与光绣球一起用作治疗前列腺问题.Hydrangea Root mat dissolve gravel an...