The effects of vegetation type, rainfall intensity, surface crust, and weed cover on rainfall infiltration and runoff on grassland and bare land were studied under simulated rainfall conditions.
利用野外模拟降雨试验，研究了植被类型、降雨强度、地表结皮、覆盖杂草等对荒草地和裸地降雨入渗、产流的影响。
This standard does not cover requirements for flush mounting boxes: however, it covers only those requirements for surface-type mounting boxes which are necessary for the tests on the socket-outlet.
本标准不涉及暗装式安装盒的要求。它只包括插座试验所必须的明装式安装盒的要求。
ZJ044 type shot blast cleaning machine is suitable for surface rust removal and strengthen of engine connecting bar, gear, shell cover wall, clutch friction part.
齿轮轴、炮弹壳内外壁、离合器摩擦片、盘齿及其它零件的内外表面的表面清理和强化。
ZJ044 type shot blast cleaning machine is suitable for surface rust removal and strengthen of engine connecting bar, gear, shell cover wall, clutch friction part.
齿轮轴、炮弹壳内外壁、离合器摩擦片、盘齿及其它零件的内外表面的表面清理和强化。
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