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- Can sand flow upward in the hourglass? 时光会倒流吗
- The airflow and the sand flow were taken as continuous flow bod y for study object in mathematical pattern. 在数学模型中，把气体和砂粒作为研究对象，并且将它们都看作连续的流体。
- Looking up from under the Shapotou, who took the sand flow, "Fei Liu thousand feet down," such as from heaven. 从沙坡头下仰望，人乘沙流“飞流直下三千尺”，如从天降。
- To overcome it, a developed technology was to inject artificial gravels into oil formation to make the gravel screen to prevent sand flow. 为此研制出地层深部充填防砂技术,该技术是向油层中注入人工砾石,由其所形成的砾石屏蔽来阻挡地层出砂。
- Several mud and sand flow accidents occurred from the goaf to mining face,which had seriously affect to the mine safety production. 梅河四井为急倾斜特厚煤层,采用水平分层综合机械化放顶煤开采,曾经多次发生采空区泥砂流溃入工作面事故,严重影响了安全生产。
- Sand flow of water and sand as the proportion of different trajectories and the flow of sand from the line, could accelerate the occurrence of cavitation. 含砂水流由于水与砂的比重不同，砂粒运动轨迹与流线脱离，可能会加速汽蚀的发生。
- Then the equations for velocity distribution along vertical direction of the dry sand flow and that for velocity of sand mass sliding along the subface and top surface are derived. 将干砂流视为连续介质的流动,对干砂流的运动动力和阻力进行了深入研究,建立了干砂流垂线流速分布方程和干砂流体底面、表面滑动速度方程。
- Oh, give me a land where the bright diamond sand Flows leisurely down the stream; Where the graceful white swan goes gliding along Like a maid in a heavenly dream. 哦,给我一片地,钻石金沙顺流走;雪白天鹅水中嬉,可是仙女下凡舞?
- Casing deformation takes place in these geological environments such as plastic rock layer, fault zone, active lithosphere zone, earthquake zone and the place where sand flows. 分析了油井套管损坏的地质环境,指出在塑性岩层、断层、地壳活动、地震活动及油层出砂等地质环境中易造成油井的套管损坏。
- 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。
- 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。
- Application of Sand Flow Silting Technique in Soft Ground Treatment 压砂挤淤工艺在软基处理中的应用
- The sun blazed down on the sand. 阳光强烈地晒在沙滩上。
- A free flow of water came from the pipe. 水从管道里通畅地流了出来。
- His company was built on the sand. 他的公司根基不稳固。
- In convection, hot currents flow upwards. 在对流中热气流向上运动。
- The river has scour out a passage in the sand. 这条河在沙土中冲出一条水道。
- After several pumps, the water began to flow. 用泵抽了几下之后,水流出来了。
