脉动式喷气发动机

The "yellowish-white liquid" sounds suspiciously like gasoline, and perhaps Vimanas had a number of different propulsion sources, including combustion engines and even "pulse-jet" engines.

微黄——白色液体听起来好像是汽油，很可能维曼拿有很多不同的推进来源，包括内燃机，甚至是脉动式喷气发动机引擎。

The earliest forms of jet-propulsion, such as the pulse jet utilized in the Flying Bomb, were incapable of functioning at rest, in view of the absence of any means of air-compression.

早期的一些类型的喷气推进器，诸如飞弹所用的脉动式喷气发动机，由于没有任何空气压缩手段而在静止状态下就不具有推进功能。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。