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- High throughout the southeast, northwest lower central staghorn River, soil sand and more serious soil erosion. 全境东南高、西北低,鹿角河流经中部,土壤沙多,水土流失严重。
- The test results show that the drawing interval of 1.5 m is helpful for controlling dead-unconsolidated thin sandstone of coal seam roof and reduce sand ratio of drawn top-coal. 试验结果表明,放煤步距采用三采一放有利于控制顶板极松散细砂岩,降低放出顶煤的含砂率。
- The factors which affect early age cracking were studied such as curing methods,workability,sand ratio and modulus of sand. 探讨了养护条件、混凝土工作性能、砂率以及砂的细度模数等因素对混凝土早期开裂的影响,并提出了减少、避免开裂的相应措施。
- Therefore, the optimization of the cement sand ratio of the filling body of Anqing Copper Mine is a very complex problem of nonlinear combined optimization. 因此,安庆铜矿充填体灰砂比的优化是一个十分复杂的非线性组合优化问题。
- Research on sand ratio of modified asphalt mixture 对改性沥青混合料中砂率的研究
- He added sand to the soil to make it more porous. 他往土里掺了些沙子以提高渗水性能。
- To reduce the filling cost,various cement sand ratios are used at different heights for the tailings consolidated filling body in Anqing Copper Mine. 为了降低充填成本,安庆铜矿尾砂胶结充填体在不同的高度采用了不同的灰砂比。
- Keywords sand ratio;displacement;pulse;sensor;densimeter; 砂比;排量;脉冲;传感器;密度计;
- Some plants push their roots deep into the soil. 一些植物的根深深长入土中。
- Such crops won't grow in limy soil. 这类作物不能在石灰质的土壤中生长。
- What shall we grow in this alkaline soil? 我们应该在碱性土壤里种什么?
- There are a lot of worms in the soil. 泥土中有许多蠕虫。
- Water has permeated (through) the soil. 水已渗遍那片土壤。
- There are some clods of soil on the mat. 垫子上有些土块。
- The earth in the garden is good, soft soil. 花园里的泥土松软肥沃。
- He add sand to the soil to make it more porous. 他往土里搀沙子以提高渗水性能。
- This kind of soil contains much alkali. 这种土壤含碱丰富。
- She makes her living from the soil. 她以务农为生。
- Grass will not succeeded in this dry soil. 在这种干燥土壤中草不会成活。
- Soil, sand, mud or other residue or dirt. 泥、沙、灰尘或其它残留物或脏物;