specific retention是什么意思

用法例句

From the static analysis of Seabuckthorn forest in the ecological construction areas,the older the communities Seabuckthorn were,the larger dry material accumulation of litter layer and water-holding rate were,the greater water-holding capacity of litter layer was.

本文对内蒙古鄂尔多斯市砒砂岩区人工沙棘林地枯落物持水性能进行了研究。

Results indicate that: ①Litter layer of forest vegetation play an important role in water-holding capacity.

在山东省邹城市刘庄小流域水土保持生态修复区内 ,对 5种森林植被类型的枯落物持水性能进行了研究。

As a result showed that:(1) Water-holding capacity of the litter in forest communities was higher than litter of the shrub and the herb, semi-decomposed litter layer was higher than un-d.

通过对京西百花山区9种植物群落凋落物持水性能、凋落物与土壤理化性状相关性分析、凋落物对土壤呼吸的影响以及凋落物对土壤种子库的截留和对萌发幼苗的影响进行研究,研究结果表明:(1)森林群落凋落物的持水能力较灌木和草本群落更高,半分解层凋落物较未分解层具有更高的持水能力。

Amount and water holding capacity of forest litter in Three Gorges Reservoir area;

三峡库区森林植被林地枯落物现存量及其持水能力

It includes analysis of biomass,fresh weight and water holding capacity of leaves and stems,litter weights and water holding capacity,soil bulk density,soil porosity,soil moisture content,capillary moisture capacity,saturation moisture content,soil constitution and organic matter,soil permeability and erosion-resisting characteristics.

结果表明,3种引进草种的水土保持效果依次为纳罗克非洲狗尾草>威提特东非狼尾草>沙弗雷肯尼亚白三叶草,纳罗克非洲狗尾草的持水能力和土壤改良性能最好,是水土保持效果最佳的牧草,可以推广种植,其次是威提特东非狼尾草。

4), incubation temperature (20~70 ℃) and time (10~30 min) on water retention ( WR ) and protein solubility ( PS ) of defatted wheat germ protein flour were studied with the method of homogeneous design.

０）、加热温度（２０～７０ ℃）和加热时间（１０～３０ ｍ ｉｎ）对其持水能力和蛋白溶解度的影响。

The composition and functional properties of several wheat glutens as well as the effects of the temperature and pH value on the water retention and protein solubility were investigated in this study.

分析研究了几种小麦谷朊粉组成和功能性质以及温度、pH值对谷朊粉持水能力和溶解性能的影响,结果表明蛋白溶胀指数越小,其性能越好;在pH值10~12,温度60~70℃,谷朊粉的持水能力和溶解度都较为理想,是小麦谷朊粉加工改性较理想的条件。

Water-holding capacity of forest litter in the mountain limestone region of Chongqing;

重庆石灰岩地区3种林分林下枯落物持水能力比较

The effects of sodium polyacrylate(SP) on soil,water-holding capacity at different suctions of sand,silt and clay were evaluated by using centrifugal Method.

2%与1%)对3种土壤(砂土、壤土、黏土)持水能力的影响;采用大田试验研究了地表撒施2 g/m2SP对冬小麦与下季玉米产量及WUE影响。

Aiming at the poor ecological functions of the existing forest for water conservation,8 types of mixed forests for water conservation had been designed and planted in Dongyuan county of Guangdong Province and the water-holding capacity of litter and soil wa.

作者针对现有水源林生态功能较差的情况,在广东省东源县设计和营造了8种不同混交类型的水源林,并对其林地枯落物和土壤持水能力进行了调查研究。

The pools and water holding capacity of moss and litter layers of residual stands,secondary forests,natural forests and artificial spruce forests in different ecological restoration stages in western Sichuan were studied in this paper.

本文作者对川西地区典型的不同恢复阶段的人工云杉林、迹地、次生林和原始林下苔藓与枯枝落叶层贮量和持水性能进行了试验研究 。

The authors studied the volume and water holding capacity of moss and litter layers under Abies georgei forest of different slope direction of the east slope of mount sejila in Tibet.

枯枝落叶层持水性能优于苔藓,说明枯枝落叶层在森林的水源涵养方面发挥了更为重要的作用。

A Rapid Method for Obtaining Water Retention Curve of Cement-Based Materials

一种快速测定水泥基材料持水能力的方法

Will the water supply hold up through summer?

供水能持续整个夏天吗？

Water Resources Supporting Capacity for Sustaining Development in Guanzhong Region,Shaanxi Province,China

陕西关中地区水资源的可持续发展支持能力

But we could live only 10 days without water.

但是不喝水却只能坚持10天。

They even sought to keep the environs clean and the drains unpolluted.

他们还能保持环境清洁，而不污染水道。

The singer has lapsed from her high standard of performance.

那位歌手没能保持住高水平的演出。

The factory cannot maintain current levels of production.

该工厂不能保持目前的生产水平.

Capacity-building Programme for Sustainable Water Sector Development

水部门可持续发展能力建设方案

STUDY ON ENERGY METABOLISM OF BEEF CATTLE UNDER MAINTENANCE CONDITION

维持饲养水平下肉牛能量代谢的研究

An Intelligent Decision Support System for Aquaculture Pond Water Quality Management

池塘水质管理智能决策支持系统研究

A pianist has to practice every day to keep up to scratch

钢琴手要天天练习才能保持高水平。

Function and Value of Soil & Water Conservation Ecological Services;

水土保持生态服务功能及其价值研究

Hydropower energy system planning based on the sustainable development;

基于可持续发展的水电能源系统规划

of or carried on in waters of great depth.

深水的或者在深水仍能坚持（工作、性质等）。

Skin with abundant hydro can retain moisture and vivid appearance.

喝饱水的肌肤，才能保持水润柔亮，神采飞扬。

Comparison of Soil Water-holding and Water-supplying Ability of the Different Grassland in Loess Hilly Region

黄土丘陵沟壑区草地土壤持水、供水性能比较

This is because water attracts the all-important life-sustaining qi, or energy.

这是因为水能够吸引维持生命的气或能量。

encourages and supports the development and utilization of clean energies such as solar energy, wind energy and water energy.

鼓励和支持开发、利用太阳能、风能、水能等清洁能源。