查询词典 by air

Mailing it by air is faster than mailing it by sea, but on the other hand is much quicker.

寄航空比海运贵，可是比海运快多了。

Mailing by air is more expensive than mailing by sea.

寄航空比海云贵。

I'll also bring a certificate by my doctor certifying my fitness to travel by air .

好的，还得带医生证明，证明我的身体状况可以乘机。

By FLUENT hydro-simulation soft, the wind flowing in the gob area is simulated and further analysis and validation is made about the mechanism of gas effusing and its prevention by air screen .

并通过FLUENT流体模拟软件，对采空区风流流动进行模拟，进一步对上隅角瓦斯涌出和空气幕防治上隅角瓦斯涌出的机理进行分析和验证。

In recent years, it is obtained from experiments that water infiltration is affected by air pressure, the problem on one-dimensional water infiltration is soloed by many researchers.

对该问题的早期研究中，忽略了空气压力变化对入渗过程的影响。

It is the simplest heat treatment and is accomplished merely by heating to 1200~1350°F(649~732°C) followed by air or furnace cooling.

是最简单的热处理，仅仅只需加热到1200~1350°F(649~732°C)，然后气冷或者炉冷即可。

I'm not urgent,he needn't post it by air, by sea is ok.

我不着急。他不必用航空寄来，海运过来就可以。

In no hurry.He doesn't need to post by air and by sea will just be right.

我不着急。他不必用航空寄来，海运过来就可以。

No hurry.He needn't post it by air ,but just by ship will be ok.

我不着急。他不必用航空寄来，海运过来就可以。

How would you go to Beijing, by air or by train?

你怎样去北京，是坐火车？

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％。