The quantity of insects specimens from different plots show degenerate meadow> protected meadow> melilotus suaveolens meadow> crested wheatgrass meadow> low and moist meadow.

Effects of Converting Native Grassland to Crested Wheatgrass and Wheat on Grassland Productivity and Soil Carbon Stock

开垦天然草地种植冰草和小麦对草地生产力和土壤碳储量的影响

The above results can be used as theory foundation for breeding new cultivars of crested wheatgrass.

上述结果可为冰草新品系的选育利用提供理论依据。

The statistical properties of ocean waves are studied before the analysis of wave spectrum. The equal energy sampling method is used to get simulation curve of the wave height and angle, for long-crested wave, combined with the expression of wave spectrum.

首先，研究海浪的统计特性，并对海浪进行谱分析，结合海浪谱密度表达式，利用等能量采样法对长峰波随机海浪进行仿真，得到海浪波高及其波倾角的仿真曲线。

Then, rolling motion equation in long-crested wave, based on the linear rolling theory, is established. Secondly, the change of ship rolling motion in multiple conditions is analyzed.

然后，在此基础上，依据船舶线性横摇理论，建立船舶在长峰波海浪中的线性横摇运动方程。（二）分析多工况条件下船舶横摇运动的变化。

A type of floating breakwater for lowering long-crested wave transmissivity for deep water applications

一种应用在深水中能降低长波透过率的浮式防波堤

Real Time Simulation and Wave Spectrum Analysis for Random Sea Wave of Long-crested Wave

长峰波随机海浪的实时仿真和频谱分析

If a gate is to be installed on the crest, orifice flow can be trans-formed into broad-crested weir flow at any water heads, provided that the suggested limitations are taken into consideration in hydraulic design.

若堰顶设有闸门，如果在水力设计中考虑了上述极限控制条件，则在任意堰顶水头情况下，都可以完成从孔流到宽顶堰溢流的过渡。

Using boundary layer and critical depth of flow theories, the hydraulic calculations are carries out for streamlined broad-crested weir. The method open a new way in the calculation of the broad-crested weir.

采用边界层理论和临界水深理论，实现了流线形宽顶堰流的水力计算，此方法为宽顶堰流流量的计算开辟了一条新途径。

During the computation of dike burst, this thesis used the formula of the broad-crested weir without bank to fulfill it.

在进行溃口计算过程中，本文采用无坎宽顶堰流公式来进行计算；

Freedom The Modular Limit of Broad-crested Weir Flow

论宽顶堰的自由溢流条件

Discussion on Hydraulic Calculation of Plane Gate on Broad-crested Weir

宽顶堰上平板闸门水力计算的探讨

Application of the Boundary Layer Theory to the Hydraulic Computation of Broad-crested Weir

边界层理论在宽顶堰流水力计算中的应用

Calculating Storage Capacity of Tidal Water of Bay by Combining Observing Data with Numerical Model Evaluation of Numerical Simulation on Discharge Capacity and The Way Used to Track Free-Surface-Taking The Rectangle Sharp-Crested Weir as An Instance

实测数据和数值模拟相结合的办法计算海湾纳潮量数值模型计算泄流能力和模拟自由水面的评价&以薄壁堰流为例

The general rectangle sharp-crested weir, when the water head of weir over comes to a certain height, the weir flow is the free weir flow.

一般的矩形薄壁堰，当堰上水头为一定高度时，过堰水流是正常的自由堰流。

Don't tell me with more water in it than cress?

别告诉我水多芹菜少？

Unit mass of the wild rice harvest harvest units than the quality of the grass can get rid of eutrophic water cress more P elements. 3.

收割单位质量的茭草比收割单位质量的水芹能去除富营养化水体中更多的P元素。

Vegetables: cabbage, heart of cabbage, Chinese spinach, water cress and celery.

蔬菜有：白菜、菜心、苋菜、西洋菜和芹菜。

Purification of Industrial Alkali Lignin by the Cresol and Sulfuric Acid Method

工业碱木素的纯化方法&甲酚-硫酸法

During the curing reaction, ester groups were intramolecularly transferred from the esterified phenol novolac resin to the o-cresol novolac epoxy resin.

结果表明，在促进剂2甲基咪唑存在下活性酯固化邻甲酚环氧树脂的反应是通过分子内机理进行的。

Recent development of O cresol novolac epoxy resin

邻甲酚甲醛环氧树脂的最新进展