moisture constant 中文意思是什麼
moisture constant
解釋
水分常數-
In chapter 2, the meteorological knowledge, data and the methods of the data processing, related to the study on the atmospheric loads, are simply presented. the model for the perfect gas constant, describes by the relative moisture, is developed. the influences of the variation in the vapor component in the atmosphere on the perfect gas constant are evaluated by using the changing characteristics of the temperature on the surface, its spatial gradient and the barometric pressure
第二章：簡要介紹大氣負荷研究所需的氣象科學知識、資料及其數據處理方法；建立相對濕度表示的大氣比氣體常數模型，利用地面溫度和空間垂直溫度梯度、壓力變化的規律估算大氣水汽組分變化對比氣體常數的影響；對中國及鄰區的地面氣壓記錄進行了預處理和網格化 -
The electronic moisture analyzer and the constant temperature and humidity equipments were used to study the influences of humidity to alfalfa drying velocity
摘要採用紅外水分分析儀和恆溫恆濕箱研究了濕度對紫花苜蓿乾燥速率的影響。 -
Laboratory culture experiment with the same treatments as pot experiment but without plant was carried out synchronously under constant temperature ( 25 ? ? ) and 20 % soil moisture. to study the influence of inhibitors on the dynamic process of transformation and variation of availability of cd in soil, laboratory cultured soil was sampled in certain interval during the 128 - day cultured period for the analysis of cd availability and speciation. in adsorption - desorption experiment, the tested soil had fistly been cultured under constant temperature ( 25 1 ) and 20 % soil moisture for two months after the treatment according to the designed plan, then isothermal adsorption - desorption experiment was proceeded when the reaction between inhibitor and soil tended to be stable
石灰施用量對植株吸收鍋有顯著影響，植株各部位鍋含量k ）與石灰添加量… ， ）的關系可以很好地用方程y叫（ ax斗bx化）描述，石灰對植株鍋累積的調控存在一個最佳抑制效應劑量，低於或高於這一劑量均不能達到最佳抑制效果，但對于不同植株部位和不同污染水平，最佳抑制效應劑量不同；低用量下，單位石灰添加量對植株吸收鍋的抑制作用比高用量時大，因此若綜合考慮調控劑的施用成本及其對生物量的影響效應，則在本試驗條件下以施用石灰0 -
Based on the analysis of the data and information from the field observations and lab experiments, the results were as follows : ( 1 ) the results of the simulated rainfall and runoff erosion experiments in lab. under the design experiment conditions including the constant rainfall intensities of 1. 0, 2. 0, 3. 0mm / min and the rainfall durations of 30, 70 minutes and with soil moisture content 9. 5 % or 10. 0 % for dry situation, as well as with the soil moisture content 19. 0 % or 20. 0 % for wet situation, the soil erosion increased nonlinearly with the rainfall intensity, and the rainfall duration. the results of the experiments indicated that the amount of soil erosion caused by the simulated rainfall and runoff on the dry - soil slope was more than that on the wet - soil slope
通過實地觀測及室內試驗資料分析，得到如下研究成果： 1 、室內模擬降雨徑流對戧坡的侵蝕試驗研究結果在定雨強為1 . 0 、 2 . 0 、 3 . 0mm min ，降雨歷時30 、 70分鐘，干土含水量為9 . 5 10 . 0 ，濕土含水量為19 . 0 20 . 0的條件下，侵蝕量與雨強成非線性正比關系；雨強大，侵蝕量大；降雨歷時長，侵蝕量也大；堤坡含水量大時，侵蝕量小，堤坡含水量小時侵蝕量大。 -
At the condition of constant salt content ( total ion content ), if the water mass fraction in the substrate is lower than 50 %, its ec is determined by both the salinity and the moisture of the substrate
試驗結果表明：在保持基質鹽分（離子總量）水平不變的條件下，若基質質量含水率低於50 % ，則電導率值受基質內離子含量和基質水分的雙重影響。 -
Through theoretical analysis on the behavior of soil - water - system dielectrics, it is proved that the real parts of the dielectric constant under high frequency or microwave can be used to measure soil water content rapidly this method can get a lot of measurement results with high accuracy and wide applicabiiity in addition, the results are seidom affected by the spatiai variation of soil property as a further application of the above result, a soil moisture sensor based on standing wave ratio was developed
概括起來本文的研究內容主要有以下幾點： 1本文通過對土壤介電特性的理論分析，論證了利用高頻或微波段內的介電常數實部來快速測量土壤含水量是一種靈敏度高、適應面寬、受土壤理化特性空間變異影響較小的快速測量方法。為研製開發基於駐波率原理的swr型土壤水分傳感器奠定了基礎。
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