多少

What is the postage for an air mail letter?

寄一封航空信的邮资是多少？

It is unclear what specific technologies and systems Israel has provided, although it is reported that the Jian-10's radar and fire-control system is the Israeli-made ELM-2021 system, which can simultaneously track six air targets and lock onto the four most-threatening targets for destruction.

有报道说歼十的雷达和火控系统是使用了以色列的ELM-2021系统，尽管这样，以色列究竟提供了多少技术给中国并不为外界所知，ELM-2021系统可以同时追踪6个空中目标并且锁定并引导导弹摧毁其中的4个最有威胁的目标。

The contract will be sent to you by air mail for your signature.

下一篇范：常见的"办公室英语"你知道多少？。。。

I'd like to send this package to Hong Kong. How much is this by air mail?

我想寄这个包裹到香港，这个用航空邮寄要多少钱？

Don't know the air temperature of today how much?

不知道今天的气温多少？

How to resolve the coupling problem between the air quality and the indoor thermal environment, especially how much fresh air can assure the indoor air quality, how to design control system to satisfy the need of fresh air, and how to track the change of the air quality in the civil air defence underground engineering at real time were studied thoroughly in this paper.

摘 要 本文就如何解决人防工程内空气品质和工程内热湿环境的耦合性问题进行一定研究，尤其对人防地下工程需要多少新风量才能满足工程内空气环境品质；如何设计控制系统以满足工程内的新风需求；如何实时跟踪工程内空气品质的变化进行了深入研究。

How much is the percent of air transportation in all modes ?

空运在所有运输方式中占的百分比是多少？

If you live in a big city, you know how much pollution is in the air.

如果你住在大城市，你知道多少污染的空气。

What's the capacity of the aire storage in your factory?

贵公司的空气压缩气储气包的容量是多少？

What's the airfare to London?

到伦敦的飞机票价是多少？

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。