酸雨

The steel self-supporting mast with the merits of environmental protection, easy decoration, small occupation, high safety factor, and high cost performance, has replaced the concrete mast and the angle iron push brace mast because of the urban renewal, the environment protection, the lack of arable land, the popularization of agricultural mechanization, the acid rain, and so on.

城市改造及环境保护、土地资源乏匮、农业机械化推广等诸多外部条件也迫使受酸雨而易老化、表面装饰性能差的混凝土杆及占用宝贵的土地资源多，妨碍农业机械化使用的角铁衍行架杆塔朝着有利环保、易装饰美化、占地少、安全系数高、性能价格比高的钢制自立杆更新换代。

Tree ring width and basic density of trees selected from healthy and acid rain damaged forests were analysed to evaluate the possible impacts on tree growth and wood properties.

通过对受害材与健康材的年轮宽度和基本密度的对比研究，可以看出酸雨对杨树生长产生了显著的影响。

Acid rain ; air pollution ; populus ; tree ring width ; basic density.

酸雨；大气污染；杨树；年轮宽度；基本密度

North permanent ices up the beltis a very big development resistance; Because the agriculture and theindustry activity causes the acid rain and the marine pollution moreand more are also serious.

北部的永久结冰带是一个很大的发展阻力；由于农业和工业活动导致的酸雨和海洋污染也越来越严重。

This article introduced the nitride pollution present situation in the atmosphere,mainly taking Shanghai and Guangzhou as the example,and analyse its pollution origin from several aspect such as the sources of energy using and motor vehicle tail gas blowoff etc.

主要以上海、广州为例介绍大气中氮化物的污染现状，并从能源使用、机动车尾气排放等几方面分析氮化物污染的来源，另外从氮化物的破坏力以及造成酸雨等方面介绍大气中氮化物的危害。

According to the batch experiments on behavior of yellow soil releasing cadmium at conditions with different acid rain, it found that the process of releasing absorbed cadmium in the soil consisted of a fast reaction and a slow reaction.

对不同酸雨条件下黄壤对镉释放的研究发现，吸附态镉释放的过程可以分为快反应和慢反应两个阶段。

It showed that the inverse circular function equation had the best fitting to the process of yellow soil releasing cadmium at conditions with different acid rain. Besides, polynomial equations and two-constant equations can also describe this process properly.

结果表明，反三角函数方程对多种酸雨条件下黄壤吸附态镉释放过程的拟合度最佳，此外多项式方程、双常数方程也能较好地描述这一过程。

So more steel mills and chemical plants mean more acid rain and smog, not to mention global warming.

因此更多的钢厂和化工厂意味着更多的酸雨和烟雾，在全球变暖方面的作用就不用说了。

So more steel mills and chemical plants mean moreacid rain and smog, not to mention global warming.

所以更多的钢厂和化工厂意味着更多的酸雨和烟雾污染，更不用说还有全球变暖问题。

The chemical rain damages trees in the forests.

酸雨损害了森林中的树木。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。