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- sand prevention pillar 防砂煤柱
- Analyzing the reason and apprehending the mechanism of sand production are the critical technique for sand prevention. 防砂工艺技术的关键在于正确分析油层出砂的原因,并判断油层出砂机制。
- 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。
- Through analysing and studying on the causes of sand plug and scaling for electric submersible pump,the sand prevention and scale control electr... 经室内试验后在现场部分含砂结垢严重的油井中应用并获得成功。
- Through continual research, improvement and perfection of sand prevention by filling in deep formation by laser caved griddle tube, there are a series of mat... 通过对激光割缝筛管地层深部充填防砂技术的不断研究、改进和完善,现已形成较成熟的防砂配套工艺。
- Take an active part in activities such as forestation, sand prevention and control, closing mountains to facilitate forestation, and returning reclaimed land and forests and grassland. 参加植树造林、防沙治沙、封山育林、退耕还林还草等工作。
- Perforating Requirements for Sand Prevention 防砂的射孔要求
- water and sand prevention technology 防水防砂技术
- sand washing and sand prevention 抽砂防砂
- forest for wind resistance and sand prevention 防风阻沙林
- wind-brown sand prevention and control 风沙防治
- Ouch! The sand is so hot! I can burn my feet. 哎哟!沙子这么烫!会烫伤脚的。
- The sand blew into the food and made it gritty. 砂吹进食物中,里边尽是砂子。
- military harbor sand prevention mole 军港防沙堤
- The children were playing in the sand pit. 孩子们在沙坑中玩耍。
- The tractor has make deep furrow in the loose sand. 曳引机在松软的沙土上留下了深深的车辙。
- The sun blazed down on the sand. 阳光强烈地晒在沙滩上。
- His company was built on the sand. 他的公司根基不稳固。
- The river has scour out a passage in the sand. 这条河在沙土中冲出一条水道。
- The boat grounded on a sand bank. 船只搁浅在沙洲上。