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It contains quadratic photosynthetic chamber and columned soil fixing body, wherein soil fixing body of canopy leaf chamber bottom set with knob basal portion being corrugation notch, capable of easy inserting amboceptor in soil to form inclosed canopy leaf chamber, amboceptor upper port inosculation with photosynthetic chamber lower wall round opening to make canopy leaf chamber intracavity forming one integral, photosynthetic chamber upper wall sealed by two side glue and photosynthetic film to ensure photosynthetic chamber steady light permeability, photosynthetic chamber sidewall installed one small size fan controlled by external battery and switch, fan capable of rapid making canopy leaf chamber gaseous reaching equalization.

本发明涉及一种用于测定植物冠层群体光合作用的冠层叶室，由正方形的光合室和圆柱状的土壤固定体两部分结合而成，冠层叶室下部土壤固定体设有把手，基部为波纹状切口，可以很容易地把固定体插入土壤中形成密闭的冠层叶室，固定体上口与光合室底壁的圆形开口吻合，使冠层叶室的内腔形成一个整体；光合室顶壁用双面胶和光合薄膜密封，以保证光合室稳定的透光性能；光合室侧壁内安装一个小型风扇，由装在侧壁外的电池和开关控制，风扇可使冠层叶室内的气体迅速达到平衡。

I once discussed in the column the trend of China's diplomatic thinking towards Americanization since reform and opening up.

笔者在本栏曾经论及改革开放以来中国外交思维美国化的趋势。

Results showed that imidazoline was hydrolyzed to amide by ring opening reaction under high temperature.

试验结果表明，高温条件下，咪唑啉发生开环反应，生成了酰胺类物质。

At length he reached to where the ravine had opened through the cliffs to the amphitheatre; but no traces of such opening remained.

终于，他到达的地方峡谷已通过向露天剧场，但这种开放的痕迹依然悬崖打开。

Since reform and opening in China, with the rapid development of the rural economy, environmental pollution problems in rural areas have become increasingly serious. It has seriously affected the realization of new socialist countryside featured with "the production development, the life ampleness, the local custom civilization, the village neatness, and the management democracy" and hampered the coordinative development of economy, society and environment in rural areas even the entire country.

改革开放以来，随着中国农村经济的快速发展，农村环境问题也日益突出，严重影响了社会主义新农村建设的"生产发展、生活宽裕、乡风文明、村容整洁、管理民主"目标和要求的实现，阻碍了农村乃至全国经济、社会和环境的协调发展。

With the deepening of Chinese reform and opening up,an increasing number of Chinese

随着中国改革开放的深入，越来越多的中国家庭买得起车了。

I told her that I would be attending an opening ceremony the next morning.

我告诉她第二天上午我正在参加一个开幕式。

In 5 minutes. Have you hosted an opening ceremony before?

还有5 分钟。之前你主持过开幕式吗？

Well done China that was an opening ceremony to be proud of the best yet.

中国干得好，这届开幕式是最棒的，骄傲吧

What an impressive opening ceremony ,Will our 2012 be anything like that?

令人印象深刻的开幕式，我们2012年的会像它一样么？

I can not negligent, he should do what?

我不能不在意了，他要做什么呢？

It is very dangerous to swim in the river alone.

一个人到河里游泳是很危险的。