飞行

He invented a large number of machines, among them an underwater diving suit. His flying devices embodied sound principles of aerodynamics.

除此之外，达芬奇的发明还涉及机械方面，这其中包括潜水服装和根据气体力学设计而成的飞行装置。

Divot A piece of turf removed with by the club when making a shot. It is always replaced and tamped down.

D- 球表面的凹面：高尔夫球表面经科学设计的圆形凹处，能使球进行正确稳定的飞行。

I have gotten a handful of orders from the DOD, the CIA, and Microsoft.

我经常都有一些少量的DOD，CIA和微软的订单，但是我想的话，大多数的订单都是那些希望从飞行中得到快乐的人们，而买一份X-Plane 完全就是一件愉快，轻松，安全的选择！

During the air force show, one of the pilots was a dan-gerous hot dogging

在空军表演时，一位飞行员做惊险的飞行动作。

During the air force show, one of the pilots was a dangerous hot dogging flyer.

在空军表演时，一位飞行员做惊险的飞行动作。

During the air force show, one of the pilots was a dan-gerous hot dogging flyer.

在空军表演时，一位飞行员做惊险的飞行动作。

Capable of Mach 2.35, it has variable sweep wings which can be set to 16 degrees of sweep during takeoff and landing, 72 degrees for high speed flight, and 45 degrees for mid-range operation; the dogtooth you can see in the outer wing section fits in to the inner wing section when in the 16 degree position.

他能够达到2.35马赫，拥有可变后掠翼，在起飞和降落的时候保持16度，高速飞行保持72度，中距离任务保持45度。外部的机翼尖端在16度时恰好能嵌入机翼内段。

METHODS: Eighty nine flying cadets were tested by Sternberg dual task of three different difficult levels, their ECG was recorded and the variables of time and frequency domain of heart rate variability were analyzed.

89名飞行学员分别完成3个不同难度等级的Sternberg双重任务作业，同时记录心电信号，分析时域及频域HRV。

There is a big caveat, said FAA spokesman Les Dorr. If an airline can show the FAA that an electronic device does not interfere with aviation, then it's allowed on board.

联邦航空局规定，如果一架飞机能够向他们证明飞机上的一台电子设备不会给飞行造成干扰，那么这种设备允许在机上使用。

If I lose today, and I don't win in doubles, I think I can catch a flight on Friday.

" "如果我输了，我不赢得双打，我想我可以赶上周五飞行。

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％。