A new method for recognizing gas components in air based on nonlinear fluorescence spectra combined with a neural network model was proposed.

提出利用物质的荧光光谱联合人工神经网络识别大气中杂质气体成分的新方法。

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Presently, passive HTO samplers are being widely used abroad. It samples HTO in air based on the principle of gas molecular diffusion and permeation.

目前被动式氚取样器在国外取得了广泛的应用，它是基于气体分子扩散或渗透原理采集空气中氚化水蒸汽（ HTO）样品的一种方法。

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The most advanced application of the air based and satellite based GPS are specially introduced here.

重点介绍了当前GPS应用的前沿，即空基和星基GPS的应用。

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They point out that the finding was based on one air measurement taken in an industrial town that is not even in Pittsburgh.

VOA: special.2009.07.13

On the other hand, an uncertain global economic environment which is forcing customers to opt for ground-based and deferred shipping services over premium air-based shipping services will negatively impact the company.

FORBES: Will UPS's Gains From E-Commerce Offset A Weak Economy?

In addition to all this, the Genesis uses liquid cooling around the motherboard, and an air-based system on the video cards.

ENGADGET: A closer look at Origin PC's Phase Change cooling system (and its new gaming laptops too)

It has now anchored and the Royal Navy Air Service based at Culdrose has supplied airbags to support the damaged port.

BBC: Damaged yacht 'can still win'