查询词典 headwater erosion

Under the effect of motive force of sheet now, erosion amount increases with the slope gradient as power function; under the co-effect of spitshment and flow, erosion amount...

在薄层水流动力的作用下，侵蚀量随地表坡度增加呈幂函数增大；在击溅和水流共同作用下，侵蚀量与地表坡度呈二次抛物线型关系。

A soil wind erosion experimental plot was set up in the alluvial sandy land of old yellow river,which is in Xiajin County of Shandong Province,and the soil wind erosion quantity was tested with measuring scale method in the observation farmland shelter-forest network and the comparison place.

在山东省夏津县黄河故道冲积沙地建立土壤风蚀试验区，采用标尺法对3种网格的农田防护林和对照地的土壤风蚀量进行观测，测定结果表明：农田防护林网可明显减少风蚀损失，其中，130m×300m林网相对于对照减少土壤风蚀量81%，260m×300m林网相对于对照减少78%，300m×400m林网相对于对照减少75%，即随着网格面积的增加对风蚀量的影响越来越小。

As a result, the wave-induced erosion on sea bed is confined within the limited area that lies between the stable coastline and subaqueous slope where erosion is decline.

此时，自废黄河口向南出现了大片水深超过-10 m的深水区，说明在此期间水下三角洲-5 m～-10 m间的水下斜坡的侧向侵蚀是十分强烈的。

When the erosion site inside the 90 degree from the taphole, we suggest that the taphole location should be adjusted away from the erosion site as soon as possible.

3依据碳化钛的浓度分布，加入二氧化钛位置应距离出铁口90度以上较好；当侵蚀处在90度以内，建议可调整出铁口位置。

There were no bone erosion in the 3 ears with simple type otitis media, and the 19 ears with cholesteatoma showed: abnormal soft-tissue and bony erosion in the tympanic cavity and antrum; dislocation and disruption of the ossicular chain; and showed disruption of sigmoid sinus plate, tegmen tympani, semicircular canal and facial nerve canal in severe cases.

胆脂瘤型中耳炎SCT-3DI示：鼓室、鼓窦内软组织影和骨质破坏，听骨链移位和破坏，严重者破坏鼓室盖、面神经管、外半规管和乙状窦板等，与手术中所见基本相符。

Tillage erosion is a new field of soil erosion research.

耕作侵蚀是国际上新近开展的一个研究领域。

Here Erosion Voxel has explicit geographical meaning because it reflects corresponding mean surface soil erosion volume of each pixel in a unit time interval; at the same time it is combined with metabal1 technology.

侵蚀体元在这里具有明确的地理意义，因为它反映单位时间段每个像元所对应的地表平均土壤侵蚀体积，同时融入元球绘制技术。

In this paper some main geological hazerds in SanJiang plain region in the process of agri-caltrual development, such as soil erosion, seline-alkaline soil, flood and waterlog hazard, en- vironmental pollution, wind erosion to soil are discussed.

本文着重阐述了我国三江平原地区在农业开发过程中出现的水土流失、土壤风蚀砂化、盐碱土，洪涝灾害、环境污染等主要环境地质问题，并以实例说明了其危害

To show that there had been enough time for natural selection to work slowly, he again cited Principles of Geology and other observations based on sedimentation and erosion, including an estimate that erosion of The Weald had taken 300 million years.

为了表明有足够的时间让自然选择慢慢地进行，他再次引用《地质学原理》和其它基于沉积和侵蚀的观察资料，包括对威尔德原野侵蚀为三亿年的估计。

Photo Gallery: Erosion and Weathering Wind erosion makes these layered sandstone hills swirl in Paria Canyon-Vermilion Cliffs Wilderness Area.

意译：侵蚀和风化的图片画廊。风蚀使这些层状的砂岩丘陵漩涡中帕里亚峡谷，朱红色悬崖荒野地区。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？