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A hierarchy and circularity of data structure was presented by analyzed STL files and compared a several of frequently used data structures. The structure acquired from redundancy vertex was filtered by vertex sequence of quick sort, and vertex adjacent list and triangle face adjacent list was established.

通过对STL文件的分析和几种常用数据结构的比较，给出了一种层次环状数据结构，该结构是由快速排序顶点序列进行冗余顶点滤除，并建立顶点邻接表和三角面片邻接表而得到的。

The invasion of drilling fluid is the main cause to the damage of fractured formation. The composite salt free-gel drilling fluid is got after analyzing the influence of different kinds of such soluble adulterant as organic salt and non organic salt on the performance of the solid-free drilling fluid and studying the condition to develop the free gel structure and the method to improve the fluid's high temperature stability and inhibitive property. The experiment shows that the apparent viscosity of this system is as high as 27000 mPas when the share rate is 0.3 r/min and the high temperature reaches at the stable level of 150℃ and the HTHP filtrate loss decreases to 15 ml at 150℃.

钻井液侵入是裂缝性储层损害的主要因素之一，实验分析了无机盐、有机盐等不同类型水溶性加重剂对无固相钻井液性能的影响，研究了无固相钻井液快速弱凝胶特性形成条件以及高温稳定性和抑制能力的提高方法，研制出的无固相复合盐弱凝胶功能性钻井液高温稳定性达到150℃，具有独特的流变性（0.3r/min黏度达到27000 mPas）和优良的抑制能力（150℃HTHP滤失量小于15 mL），成本远低于甲酸盐钻井完井液。

In order to improve Guanting Reservoir water quality, Ministry of Water Resources and Ministry of Science and Technology put a pilot study on Biological Aerated Filter for Guanting Reservoir Water Source.

为改善官厅水库水源水的水质，水利部、科技部提出官厅水库水源水曝气生物滤池工艺的试验研究。

The experiments of purification of Taihu Lake water through biological aerated filter, flotation, ozone and biological activated carbon were conducted.

采用曝气生物滤池、气浮和臭氧生物活性炭联用技术对太湖原水进行试验。

Our aerial work products include the following: Movable Alluminum Alloy Ladderspan , Movable Insulative Ladderspan, Alluminum Alloy Ladder, Insulative Ladder, Aerial Platform, ect. And our safety protection products are including the protection series of SF6, such as: protection suits, gloves, protection shoes, filter pots, protection masks, breathing devices, ect.

公司经营的高空作业产品包括移动式铝合金快装脚手架、移动式绝缘脚手架、铝合金梯、绝缘梯、高空作业平台等；安全防护用品包括SF6防护产品系列包括SF6专用防护服、手套、防护鞋、滤罐、面罩、呼吸器等。

We carry on a processing to the oil extraction waste water, instead in return to affusion, then not only will they satisfy the affusion of water which increase increasingly in the process of the extraction of the oil-field, but also can save the water resources and reduce pollution of the environment, bring an economic performance for the oil-field, its advantageous to the oil-field can keep on a development.

试验后水质明显改善，符合辛一站的水质标准。本论文的实验研究工作在胜利油田辛一站进行，首先分析了辛一站的采油废水的性质，用悬浮污泥过滤法简称SSF和超滤膜过滤法2种方法，分别进行了辛一站采油废水处理试验。

According to resonant principle, a suitable resonant chamber is designed for intake system. The low frequency sound pressure level is decreased in the body. The high frequency noise is improved through damping air filter brace.

因此，采用共振消声的原理，设计了合适的共振腔，降低了低频噪声成分，并采用阻尼降噪技术，对空气滤清气的支架进行了处理，降低了高频噪声成分。

And according to the breakdown of air filtration chip , air-bleeding valve of compressed air, the countermeasures were put forward.

分析了空压机排气压力异常的主要原因，并针对空气滤芯和压缩空气吸排气阀的故障，提出相应的解决方法。

Using the airbrush I do some quick rendering of the forms lit by my soft overhead light source.

我对着俩部分用了纹理滤镜，我用了光源在上方的砂岩纹理。

JNLWD has recently asked the company building the gas canister, General Dynamics, to develop methodologies to characterize the aerosols it generates, and to calculate the ground area coverage of gas clouds created by an airburst at different altitudes.

JNLWD 最近让某家公司来建立气体滤毒罐和常规动力学，来改善产生气溶胶的品质，计算在不同海拔下炸弹空爆产生的气体云雾笼罩的不同区域范围。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。