查询词典 used sand

A course material used in blast cleaning, such as sand, steel shot, glass beads or plastics.

用于喷抛清理一种流动材料，例如砂子、钢丸、玻璃珠或塑胶制品。

Abrasive 研磨剂 A course material used in blast cleaning, such as sand, steel shot, glass beads or plastics.

用于喷抛清理一种流动材料，例如砂子、钢丸、玻璃珠或塑胶制品。

The whole process for the adoption of the original rough cut grid after sewage upgrade sewage pump upgrade, the grid or screen rate cut, after entering desilting tank, the sand separation of sewage water into the initial sedimentation tanks, more than one address, Shen early pool of water into the biological treatment facilities, activated sludge and biofilm,(which activated sludge of the reactor have aeration tanks, oxidation ditch, biofilm law, including biological filter, biological Wheel, biological Contact oxidation and biological CFB), The sedimentation tank sludge back to the initial part of sedimentation tanks or biological processing equipment, part of concentrated sludge into the pool, after digesting sludge into the pool, after dehydration and drying equipment, the sludge was last used

整个过程为通过粗格删的原污水经过污水提升泵提升后，经过格删或者筛率器，之后进入沉砂池，经过砂水分离的污水进入初次沉淀池，以上为一级处理，初沉池的出水进入生物处理设备，有活性污泥法和生物膜法，(其中活性污泥法的反应器有曝气池，氧化沟等，生物膜法包括生物滤池、生物转盘、生物接触氧化法和生物流化床)，二沉池的污泥一部分回流至初次沉淀池或者生物处理设备，一部分进入污泥浓缩池，之后进入污泥消化池，经过脱水和干燥设备后，污泥被最后利用。

The hydraulic lift is used to quickly excavate the collecting well on a shifting sand foundation.

利用液压反铲，在流沙地基上快速开挖集水池基础，并及时浇筑防渗体混凝土获得成功，阻挡了流砂大量向基坑内涌进，确保了集水池的顺利施工。

The lubricants of casting mold used in green sand transfer coating were investigated under impact pressure casting.

在气冲造型条件下对粘土砂转移涂料的脱模剂进行了研究。

Experiments were conducted in 1955—1957 to determine the merits of the use of gravel as a soil mulch material instead of a mixture of sand and gravel widely used in Kansu.

为了改进这种缺点，我们提出用直径5毫米以上的砾石来代替砂石混合物作为土壤覆盖层。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。