limiting factors 中文意思是什麼

This technology will assist producers to assist producers to cope with climatic - limiting factors, such as : uneven distribution of rainfall, delayed accumulation of heat units and selection of crop rotation sequences, etc

這一技術將幫助生產者妥善對付天氣限制因素，如：雨量分配不均，積溫拖延和作物輪作順序選擇等。

However, before considering possible designs we will first discuss the limiting factors in such systems.

但是在談這種方式可能的作法以前，得首先討論這種方式的限制因素。

What are the limiting factors on voltage

電壓的限制的因素是什麼呢？

Limiting factors to vietnam - usa relations

越美關系發展的制約因素

Susilo administration ' s economic policy and its limiting factors

蘇西洛政府的經濟政策及制約因素

Abstract : the meanings and functions of agriculture industrialization were expounded, and analysis on limiting factors of developing agriculture industrialization was made. rased on this, 7 concrete resolving approaches were put forward

文摘:論述了農業產業化的意義與作用，並對農業產業化發展限制因子進行了分析。據此，提出了7條具體解決途徑。參4 。

Soil nutrient limiting factors of irrigation desert soils in hexi region, gansu province

甘肅省河西地區灌漠土養分限制因子研究

The slope geometry is variable quantities, and the reliable safety and reliability are main limiting factors. according to the above factors, a optimized model for designing high loess slope is established. this model ' s concept is precise, and its physical meaning is confirm, people who do designing work can see this model as a means

最後，為了使邊坡設計獲得最佳工程效果，本文在崔政權建立的優化公式： c = a + pf ? b的基礎上，全面考慮施工造價和風險造價，運用數學原理和優化理論，用費用?效益分析方法，以最小總期望造價為目標函數；以坡型、坡比為設計變量，以安全可靠為主要約束條件，建立了黃土高邊坡的優化模型。

Greenhouse experiment verified that n, p, k, s and probably zn, were the yield limiting factors in the soil

溫室盆栽試驗證實氮、磷、鉀和硫是該土壤的產量限制因子，鋅也在一定程度上限制產量。

On the loess plateau, water is the main limiting factors for vegetation growth. root distribution characters have special ecological meaning as it reflected the utilizations of trees to the environments. even - aged stands of robinia pseudoacacia on slope lands facing south and north were selected as sampling plots for root distribution investigation. investigatiing results showed that indicated that on all sites, root biomass decreased with depth, and the distribution depth of fine root was deeper than that of coarser root. the results of variance analysis indicated that there were great differences in root biomass among different diameter classes, and coarser root was the main sources of variance, and the root biomass, especially fine root ( < 3mm ) biomass on northern exposition sites was bigger than that on southern exposition sites. analysis of the vertical root distribution parameters, root extinction coefficient, indicated that the value of on northern exposition was more than 0. 982, while the value of on southern exposition was less than 0. 982, which indicated that the vertical root distribution depth of robinia pseudoacacia on southern exposition was deeper than that on southern exposition. and the distribution depth of fine roots ( < 1mm ) was deeper than that of thicker roots ( < 3mm ), which was in favor of the uptake of water and nutrients from deeper layers, helped the trees to adapt the arid environment, and promoted the growth of the upper parts of the tree

在中國西北黃土高原地區，水分是樹木生長發育的主要限制因子.根系分佈特徵由於反映了樹木對環境條件的利用程度而具有更加特殊的生態意義.本研究選擇陽坡和陰坡不同立地上年齡一致的刺槐林調查了根系分佈特徵.根系垂直分佈特徵的調查結果表明，在所有立地上，根系生物量隨著深度的增加而降低，其中細根的分佈深度大於粗根的分佈深度.方差分析結果表明:不同立地上不同徑級根系的分佈特徵也有明顯的差別，粗根是差異存在的主要原因，陰坡立地上的根系生物量，特別是細根生物量大於陽坡立地上的.對根系消弱系數的分析結果表明，陰坡立地上的根系消弱系數大於0 . 982 ，而陽坡立地上的根系消弱系數小於0 . 982 ，說明陰坡立地上刺槐根系的生物量在深層土壤中的分佈相對量更大一些.其中細根的根系消弱系數大於粗根的，這種根系分佈特徵有利於根系對深層土壤水分養分的吸收利用，進而促進樹木地上部分的生長發育.圖3表3參15

Abstract : on the loess plateau, water is the main limiting factors for vegetation growth. root distribution characters have special ecological meaning as it reflected the utilizations of trees to the environments. even - aged stands of robinia pseudoacacia on slope lands facing south and north were selected as sampling plots for root distribution investigation. investigatiing results showed that indicated that on all sites, root biomass decreased with depth, and the distribution depth of fine root was deeper than that of coarser root. the results of variance analysis indicated that there were great differences in root biomass among different diameter classes, and coarser root was the main sources of variance, and the root biomass, especially fine root ( < 3mm ) biomass on northern exposition sites was bigger than that on southern exposition sites. analysis of the vertical root distribution parameters, root extinction coefficient, indicated that the value of on northern exposition was more than 0. 982, while the value of on southern exposition was less than 0. 982, which indicated that the vertical root distribution depth of robinia pseudoacacia on southern exposition was deeper than that on southern exposition. and the distribution depth of fine roots ( < 1mm ) was deeper than that of thicker roots ( < 3mm ), which was in favor of the uptake of water and nutrients from deeper layers, helped the trees to adapt the arid environment, and promoted the growth of the upper parts of the tree

文摘:在中國西北黃土高原地區，水分是樹木生長發育的主要限制因子.根系分佈特徵由於反映了樹木對環境條件的利用程度而具有更加特殊的生態意義.本研究選擇陽坡和陰坡不同立地上年齡一致的刺槐林調查了根系分佈特徵.根系垂直分佈特徵的調查結果表明，在所有立地上，根系生物量隨著深度的增加而降低，其中細根的分佈深度大於粗根的分佈深度.方差分析結果表明:不同立地上不同徑級根系的分佈特徵也有明顯的差別，粗根是差異存在的主要原因，陰坡立地上的根系生物量，特別是細根生物量大於陽坡立地上的.對根系消弱系數的分析結果表明，陰坡立地上的根系消弱系數大於0 . 982 ，而陽坡立地上的根系消弱系數小於0 . 982 ，說明陰坡立地上刺槐根系的生物量在深層土壤中的分佈相對量更大一些.其中細根的根系消弱系數大於粗根的，這種根系分佈特徵有利於根系對深層土壤水分養分的吸收利用，進而促進樹木地上部分的生長發育.圖3表3參15

Characteristics of climate and soil resources, the major limiting factors of plant production, and reasonable agricultural production types in shanxi were clarified

摘要論述了山西省山地丘陵區氣候和土地資源的特點、植物生產的主要限制因子，及由之決定的適宜植物、動物和適宜農業生產類型。

Result from greenhouse indicated that n, p, k and s were found to be yield limiting factors, and zn was also limiting yield at some extent ( see of results and discussion )

溫室試驗結果表明該土壤氮、磷、鉀和硫是產量限制因素，在某種程度上鋅也可能是限制因素（見結果和討論） 。

The theoretical analysis shows that mz - ifog can be used to detect the rotation rate of moving objects. a systematic analysis of transfer characteristics of mz - ifog is made. performance - limiting factors, including the path - length difference, the disturbance of temperature fluctuation and stress from working environment, the quality of light source, are all discussed along with methods to reduce their effect on the output signal

本文用系統的方法分析了mz型干涉式光纖陀螺儀的光傳輸特徵，指出了其較大的非互易性因素-臂長差的存在，分析了工作環境因素（溫度，應力） 、光源質量（輸出光束中心波長、光功率波動及偏振態波動）對系統工作性能的影響，並指出了減少系統非互易因素、抑制噪聲、提高檢測穩定性的措施。

Qiandaohu lake was very famous for its clean water quality. but in recent years the water body has become seriously eutrophic especially during summer months in some areas of the lake and came to the attention of national, provincial and city environment protection agency. the main objective of this study involved the following : sampling and monitoring water from the lake ; water quality assessment and biological assessment ; ascertain the limiting factors for phytoplankton growth ; fuzzy cluster analyse of water pollution of all sampling points ; predicting total phosphorus concentration in the lake by using static models ; setting up regression models and their application ; setting up an eco - dynamic model and its simulation

本研究根據1998 - 2000年連續監測數據，對千島湖進行了水質評價和生物評價；分析了千島湖水體富營養化的限制性因子；同時根據千島湖各個取樣點的污染狀況，對千島湖進行水環境質量區劃；利用前人的經驗統計模型預測了千島湖現有的磷濃度水平及治理所需要削減的污染物負荷量；並且組建了多個回歸統計模型，運用這些模型預測千島湖水體中的總磷濃度；最後根據多年水質、底質、生物等方面的監測數據以及千島湖流域的氣象和社會經濟狀況的資料組建機理性的千島湖富營養化模擬模型。

Other limiting or potential limiting factors on the soil of xiangyang were n, k and b ; and on the soil of ezhou were n, k, b and zn

襄陽土壤其它限制因素或潛在限制因素為氮、鉀和硼；鄂州土壤則為氮、鉀、硼和鋅。

For revealing the mechanism of low bacterial biomass in the lake, limiting factors for bacterial growth were studied with pure cultural and natural cultural tests

為了探明西湖水體中細菌生物量低的原因，通過添加不同營養鹽類的純種和自然培養試驗，對異養細菌生長的限制因子進行了研究。

A comment on the function of civic participation in public policy progress and its limiting factors

公共政策過程中公民參與的作用及其限制性因素分析

Additional objectives will be to provide an understanding of the status of wireless web access in the u. s. and abroad, the limiting factors in the move to pervasive computing, and the potential effect ubiquitous computing will have on the practice of medicine

額外的目標將提供美國與其他國家目前現階段無線網路入口的現狀，普及運算行動中的限制因素，以及普遍運算對于醫療的實行的潛在影響。

It also studies other related theories on performance management, such as objective theory, objective management theory and motivation theory, describing and expounding the definition, the content, the roles of performance management, and the components, the objectives and the limiting factors of the performance management system

同時對指導績效管理的相關理論如目標理論和目標管理理論、激勵理論等進行研究，對績效管理的含義、內容、作用和績效管理體系的組成部分、目的、影響因素等作較為全面的闡述和研究。