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- sand control engineering vegetation 治沙工程植被
- Keywords Particle Image Velocimetry（PIV）;wind tunnel;wind blown sand;geomorphology of sand dunes;sand control mechanism; 粒子图像测速;风洞;风沙流;风沙地貌;防沙;
- sand control engineering 防沙工程
- I majored in Systems and Control engineering. 我的专业是系统控制工程。
- The blowing sand stung his cheeks. 飞沙打得他的双颊生疼。
- Their feet are lightest when on a path, whether of blown sand, concrete or spirit-stuff. 无论是在流沙,混凝土还是精神世界中,他们的脚步都很轻巧。
- SHANGHAI OUDA ELECTRIC CONTROL ENGINEERING SYSTEM CO., LTD. 上海欧达电气控制工程系统有限公司。
- NANJING YONGHUI ELECTRIC POWER CONTROL ENGINEERING CO., LTD. 南京永惠电力控制工程有限公司。
- The main environment problems in preservation of Mogao Grottoes are fracture of cave rock, wall-painting, mural fading, erosion from blown sand and sand deposition. 莫高窟保护面临的主要环境问题有洞窟围岩裂隙，洞窟壁画酥碱，壁画退色，风沙对壁画、塑像的磨蚀以及积沙对洞窟的掩埋等。
- M. Noton, Modern Control Engineering, Pergamon Press, 1972. 日)绪方胜彦，现代控制工程，科学出版社，1981。
- China is rich in extra fine sand, such as river sand in the Changjiang River, Yellow River and Zhujiang River, blow sand in the area of northeast China and Xinjiang. 我国有着丰富的特细砂资源,如长江、黄河、珠江等流域的河砂,西北和新疆等地的风积砂几乎遍布全国各地。
- In conclusion, ecomat chessboard type is the best measure for sand control ecologically and economically in this region. 从生态和经济的角度综合考虑，钻字状铺设显然是该区域流沙防治措施中较好的选择。
- Camels have three eyelids to protect themselves from blowing sand! 骆驼有三层眼睑用来防风沙;
- Therefore, oil viscosity m ust be considered in sand control design in viscous oil field. 因此 ,对稠油油藏进行防砂设计时应考虑原油黏度的影响
- Today blowing sand dusts the town and silts its harbor. 如今，飞扬的沙尘弥漫了小镇，掩盖了港口。
- Therefore, the sand control strength can be improved through adding the fibred to the coated sand. 所以,在覆膜砂中加入纤维,可以提高覆膜砂的挡砂强度等性能。
- Therefore, the sand control strength can be improved through adding the fibre to the coated sand. 所以,在覆膜砂中加入纤维,可以提高覆膜砂的挡砂强度等性能。
- Separate implementation of sand control,water plugging and injectivity profile control had brought formation damage. 稠油油藏在开发过程中常遇到出砂、出水的问题,开采时分别进行防砂、堵水、调剖3种措施给地层带来了伤害。
- Common downhole handling processes,such as acid jobs,control pipe or central pipe sand control,meet these problems. 对利用高压水射流技术的物理法解堵机理进行了分析;
- Therefore, it would help sand control to avoid perforating such areas in selec... 当井筒内压力保持不变时,随着油藏压力衰竭,射孔孔眼发生剪切屈服、出砂的可能性增大;
