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1·His work offered valuable experience to sand prevention and control in China.

他的工作为我国防沙治沙提供了宝贵经验。

2·The engineering sand prevention system along the highway of crossing Kubuqi desert was damaged seriously.

库布齐沙漠穿沙公路两侧现有工程防沙体系破损情况日趋严重。

3·They came to Ningxia(China)for the 21-day-long International Technical Training Course of sand prevention and control.

目前他们正在宁夏参加为期21天的阿拉伯国家防沙治沙技术国际培训班。

4·Reasonable aperture of sand prevention meshwork is important if liner in sand prevention of horizontal well is adopted.

水平井若采用筛管防砂，合理的防砂网孔径的确定尤为重要。

5·In the evaluation of gravel filling sand prevention, the filling coefficient is one of important parameters to evaluate gravel filling whether good or not.

在砾石充填防砂评价中，充填系数是评价砾石充填好坏的重要参数之一。

6·Through optimizing output and productivity, reasonable sand production exploitation decides optimal production measure between sand prevention and sand production.

适度出砂是通过优化产量和油井的产能在防砂生产和出砂生产之间确定最优的生产策略。

7·Therefore a new type of sand prevention and water plugging agent was studied in this paper. The new agent can prevent sand effectively, but also plug water with high selectivity.

研究将防砂堵水工艺合二为一的新型防砂堵水剂，既能有效防砂，又有选择性堵水效果。

8·Surface viscous acid has been prepared by mixing thickening agent (PAM) and cross? Linking agent (GL-5) with acid, which has the function of retarding reaction rate and sand prevention.

表面稠化酸是将稠化剂(PAM)、交联剂(GL - 5)加到酸中配制而成，它具有缓速酸化和防砂作用。

9·A novel resin for in-situ sand curing is developed through indoors experiment to solve problems exist in the sand prevention of heavy oil well, such as high cost and severe formation damage.

针对目前稠油井防砂存在的成本高、对地层损害严重等问题，通过室内实验研究出了一种新型树脂就地固砂技术。

10·Both sides can also strengthen cooperation in the areas of tourism, sand storm prevention and space technology.

双方还可在旅游、防治沙尘暴、空间技术等领域加强合作。

防砂

1·In the evaluation of gravel filling sand prevention, the filling coefficient is one of important parameters to evaluate gravel filling whether good or not.

在砾石充填防砂评价中，充填系数是评价砾石充填好坏的重要参数之一。