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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
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| | he impact of dead leaves on land surface flow velocity and granite grain starting movement condition in masson pine forest has been studied through water trough experiment in room,and the restlts show that surface flow velocity is in direct ratio with land slope and discharge,andinverse ratio with dead leave amount,and their power series relation is marked,the flow speed forincohesive even granite grain to start move is in notable power series relation with grain av... | | 运用室内水槽实验方法,研究了马尾松林枯落物对地表径流速度的阻滞作用和对花岗岩砂粒起动流速的影响。结果表明,径流速度与坡度和流量成正比,与枯落物量成反比,它们之间的幂函数关系显著;无粘性均匀花岗岩砂粒的起动流速与砂粒平均粒径、坡度和枯落物量之间存在明显的幂函数关系;枯落物与苦藓组合地被层对坡面径流速度和砂粒起动流速的影响比仅有枯落物覆盖时更明显;粒径大于2.0mm的砂粒在有枯落物覆盖时,即使在大于35°的坡度条件下也很难起动。 | | 文摘来源 | |   |
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