hard pan

hard pan的基本解释

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硬盘层, 硬土

与hard pan相关的网络例句 [注：此内容来源于网络，仅供参考]

With only one central tine fitted it can work as a subsoiler and upto maximum depth for breaking of hard pan even with 50hp tractor.

只装配一个中心尖头时，它可以被用作一个深耕铲，最大硬土破土深度甚至可与50马力的拖拉机相当。

The simulated result from SAWAH model shows the averaged flux infiltrating into hard pan is 0.53 billion cubic meters annually. Based on the empirical equation used by Taiwan Provincial water conservancy Bureau, the infiltration capacity of paddy field is computed and graded into by six levels. The Geographical Information System is adopted to present the results.

ARC/INFO及ARCVIEW等地理资讯系统软体被应用於评估分级水稻田入渗情形，依据水利局设计规范经验公式估算四层(0～30公分，30～60公分，60～90公分，90～120公分)土壤质地入渗率后，复利用调和平均法估算四层土壤质地之平均入渗率，最后将水稻田对地下水补注效果区分为六级。

A ten centimeter thickness hard pan soil with 0.03cm/day hydraulic conductivity is selected to analyze the irrigated data from 68 hectare Shan-Shin group, Mayan station in Yun-Lin. A one-dimensional, Darcy-based soil/water balance model SAWAH, a water balance method, and an empirical equation used by Taiwan Provincial Water Conservancy Bureau are adopted to estimate the quantity of infiltration from the paddy field.

本研究首先针对地下水补注颢著区域之云林农田水利会麻园工作站上新小组进行分析，利用三种方法估算此小组内四个轮区共68公顷之平均入渗率分别如下：(1)一维饱和未饱和垂直入渗数学模式结果为6.65mm/day(2)水收支平衡法结果为8.18mm/day(3)水利局设计规范经验公式法结果为10.95mm/day。

与hard pan相关的网络解释 [注：此内容来源于网络，仅供参考]

hard paraffin：硬石蜡,固体石蜡

hard pan 硬盘层,硬土 | hard paraffin 硬石蜡,固体石蜡 | hard particle 硬颗粒

Hard pedal：费力的踏板

hard pan;硬土层 | hard pedal;费力的踏板 | hard plastic female connector;硬塑内螺纹管接头

hard pan; ortstein：硬盘

坚霜 hard frost | 硬盘 hard pan; ortstein | 暴雨 hard rain