大约

The second cell consists of air rising in the middle latitudes—about 30 to 60 degrees north and south—and then falling again near the poles.

而第二个环流圈的气流从中纬度地区上升（大约在南北纬30-60度），并在极地附近下降。

The second cell consists of air rising in the middle latitudes-about 30 to 60 degrees north and south-and then falling again near the poles.

而第二个环流圈的气流从中纬度地区上升（大约在南北纬30-60度），并在极低附近下降。

The fare for an air ticket is about 2,540 wan.

北京到拉萨的机票价格大约是2540元。

This in turn pushes up the program cost, estimated at about $3,800, including air fare.

这样就增加了留学的费用，加上飞机票，估计费用大约为3，800 美元。

About 20 percent of airline revenues comes from air freight.

航空公司大约20%的收入来自航空运输。

The Chinese-language China Air Pollution Map, published yesterday, follows last year's Water Pollution Map, a website that listed about 9,000 companies across the country, including multinationals such as Carlsberg, the Danish brewer.

继去年推出"水污染地图"网站后，名为"中国空气污染地图"的中文网站也于上周正式开通。全国曾有大约9000家公司登上过"水污染地图"的名单，其中包括丹麦酿酒商嘉士伯这样的跨国公司。

Eckener desperately looked for a suitable place to crash land the airship, the French Air Ministry advised him that he would be permitted to land at the Naval Airship Base at Cuers-Pierrefeu about ten miles from Toulon to use the mooring mast and hangar of the lost airship Dixmude (France's only dirigible which crashed the Mediterranean in 1923 with the loss of 52 lives) if the Graf could reach the facility before being blown out to sea.

正如叶文Eckener拼命地寻找合适的地方坠毁的飞艇土地，法国空军部通知他，他将被允许降落在海军飞艇基地 Cuers - Pierrefeu 大约10英里土伦使用桅杆和库泊失去的飞艇 Dixmude （法国唯一飞船坠毁于1923年在地中海的损失52生命）如果格拉夫可能达到的设施，然后炸毁了大海。

This Years, we have to rail lines, urban rail transit provided about 18,000 sets of air-conditioning units and train 2,500 sets of door systems.

这几年，我们已经为铁路干线，城市轨道交通提供了大约18000套列车空调机组和2500套门系统。

Anvers Air-Miser MSP-AM series multi-stage air-driven vacuum pumps are now offered in five sizes from 0.06 to 0.64 SCFM and operate at 45 psi (3.1 bar) air pressure, about half that of conventional venturi-style pumps, the company says,.

该公司介绍，Anver的Air-Miser MSP-AM系列多级气动真空泵现在有五种型号可供选择，从0.06到0.64SCFM，它可以在45psi(3.1bar)压力下正常运行，所需压力大约是普通文氏泵的一半。

Anver's air-miser msp-am series multi-stage air-driven vacuum pumps are now offered in five sizes from 0.06 to 0.64 scfm and operate at 45 psi (3.1 bar) air pressure, about half that of conventional venturi-style pumps, the company says,.

该公司介绍，anver的air-miser msp-am系列多级气动真空泵现在有五种型号可供选择，从0.06到0.64scfm，它可以在45psi(3.1bar)压力下正常运行，所需压力大约是普通文氏泵的一半。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。