查询词典 headwater erosion

With these databases,12 essential evaluation factors was decided,such as drainage capability,crop rotation system,parent material,soil erosion type,soil acidity,organic matter,total nitrogen,available phosphorus,available potassium,exchangeable magnes...

并在此基础上选取排涝能力、轮作制度、成土母质、土壤侵蚀类型、pH、有机质、全氮、有效磷、速效钾、交换性镁、耕层厚度、障碍层状况12个要素作为评价指标。

The distribution of glacial-erosion traces on the roche moutonnee has fair regularity, that is to say the long-straight striations were often formed on the top of stoss side and the crescentic scars, crescentic wedges, chatter marks and shorted striations on the end of stoss side and striation of many groups on the flanks, which can show the condition of glacial division-flow.

迎冰面的顶部为长度大且平直的擦痕，尾部为新月型裂纹，新月型凿口，颤痕和较短的擦痕；侧部常有多组擦痕，它可指示冰川分流的情况。

Contrastenhanced magnetic resonance imaging of the orbit showed a giant frontal mucocele with bony erosion and compression of the right orbit.

眼眶的核磁共振摄影发现巨大额窦黏液囊肿合并骨质侵蚀及压迫右眼球。

Many kinds of diseases such as subgrade depression, water scouring, slide, mudding, asphalt pavement raveling, stripping, map cracking and cement concrete pavement pumping, faulting, fracture are to do with the erosion of surface and underground water to some extent.

大多数路基沉陷、冲刷、坍塌、翻浆，沥青路面松散、剥落、龟裂，水泥混凝土路面唧泥、错台、断裂等病害，都不同程度地与地表水和地下水的侵蚀有关。

The corrosion and erosion-corrosion behaviors of A3 carbon steel in naphthenic acid mediums at high temperature were studied in detail.

1前言高温环烷酸腐蚀和冲刷腐蚀是世界炼油工业的宿敌，也是目前炼油厂亟待解决的难点问题之一。

In particular, naphthenic acid corrosion has more erosion to the crude oil unit so as to affect security operation.

尤其环烷酸腐蚀对常减压装置安全运转影响甚大。

In this paper,a revised universal soil erosion e-quation was selected, the effects of errors of this neglection on it were tested by non-parametric hypothetical test method of Kolmogorov-Smirnov for a 22-year period within 21 catchments of the middle Huanghe River region,and the resul...

采用非参数假设检验方法，对年产沙模数估计方程中下垫面因素的时变影响作定性分析，结果表明，对于一般流域，如果没有人类活动或自然灾害破坏导致下垫面条件的突变，下垫面因素对产沙的影响可看作是时不变的。

The change of the control grouph histomorphology was clear: the inerassation of synovial lining cells, the infiltration of Inflammatory cells and the erosion of nephelium of blood vessels on bones.

模型组大鼠组织形态学改变明显：关节滑膜衬里层细胞明显增犀，炎性细胞浸润，血管翳组织侵蚀骨组织等；而给药组组织形态学改变显著减轻。

Drying is accom-plished at a noncritical, elevated temperature, and the resultingdried material is strong, hard, and erosion resistant.

而且可在非临界高温下进行干燥，干燥后的材料坚硬，并具有抗腐蚀能力。

Soil erosion intensity presented the characteristics of nubby discontinuous distribution in spatial, which is

采用影响度指数表示评价单元的土壤侵蚀对水质的影响程度，选择土地利用、离沟道距离、K值、坡度和侵蚀模数等作为评价影响度的影响因子，采用专家打分和综合评判法并结合GIS对土壤允许流失量进行判定；研究表明，研究区土壤允许流失量在100～500 t/km~2·a之间，且以200 t/km~2·a占绝大多数，100 t/km~2·a、300 t/km~2·a、400 t/km~2·a和500 t/km~2·a仅有零星的分布。

Alternatively, the con- trollers can use the synchronous rectifier itself or loss- less inductor current-sensing methods to provide overload protection with lower power dissipation.

另外，康威特罗勒斯可以使用同步整流器本身或亏损减少电感电流检测方法，以提供低功耗过载保护。

Mr. Dauber's other Schatz hangs in his home movie studio.

多伯把沙兹的另一件作品挂在家里的电影室。