The look of erosion part of jade have eroded hole (Mayi Dong), Hang erosion, erosion spots, erosion ditch, erosion vein (mesh and whirlpool) and surface erosion, and so on.
透闪石和蛇纹石的侵蚀形态有侵蚀洞（蚂蚁洞）、侵蚀坑、侵蚀斑、侵蚀沟、侵蚀脉（网状和漩涡状）和侵蚀面等。
The inverted umbrella surface aerator is a kind of special equipment for Carrousel oxidation ditch, and the selection design is very important.
倒伞型表曝机作为卡鲁·塞尔氧化沟的专用设备，其选型设计至关重要。
It's very efficient at propelling water radially, aerating and mixing the water. The invert umbrella aerator is especially suited for surface aeration oxidation ditch process.
该机径向推流能力强、充氧量高、混合搅拌效果好，特别适宜于表曝型氧化沟污水处理工艺。
It is observed by SEM that glass fiber has smooth surface, low crystallization, high density of fracture and shellfish veins of fracture obviously submits ditch form.
用SEM观察到玻璃纤维的表面光滑、低析晶、断口质密度高、断口贝纹呈明显沟状。
The existing highway design criterion only takes setting pavement longitudinal grade, side ditch and drainage ditch into account in order to eliminate surface water.
现有的公路设计中，考虑较多的仅仅是通过设置道路的纵坡、边沟及排水沟等设施来排除地表水。
This paper studies the application of digital elevation model (DEM) to the design of the surface drainage ditch system.
研究数字高程模型(DEM)在滑坡地表排水辅助设计中的应用。
This paper studies the application of digital elevation model (DEM) to the design of the surface drainage ditch system.
研究数字高程模型(DEM)在滑坡地表排水辅助设计中的应用。
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