天然几

本篇研究，我们利用一个正电性的天然高分子几丁聚醣来对腺病毒外壳进行共价性的修饰。

The purpose of this study is to covalently modify adenoviral capsid with chitosan , a cationic and natural polymer .

也许由于植物中有天然胶质，几层粘到一起了。

Perhaps because of a natural gum in the plant , the layers stuck together .

我国天然香料发展的几点想法

My Opinions about Development of China Natural Flavor and Fragrance Materials

对巩固提升云南天然橡胶产业的几点意见

Idea to Solidify and Advance Yunnan Natural Rubber Industry

但即使这一步也足以削弱亚洲的天然气价格，此前由于日本被迫以进口天然气替代核能，导致亚洲天然气价格几次逼近20美元/百万英热单位。

But even that will be sufficient to undermine gas prices in Asia which rose at times to almost $ 20 / mmbtu as Japan was forced to substitute imported gas for nuclear .

介绍了中国和世界天然气市场的发展状况，指出了中国天然气市场发展的前景和存在的主要问题，提出了发展我国天然气市场的几点政策建议。

The article introduces the development status of both China and world natural gas market and points out the development prospect and existing main problems of China 's natural gas market . It also puts forward several policy suggestions to develop China 's natural gas market .