per-unit system 中文意思是什麼
per-unit system
解釋
標么值制-
Based on the situation of demand exceeds supply in the market, the author would like to find out the constraints of the water chestnut development by use of pra ( participatory rural appraisal ) in a survey to carry out stakeholder analysis including the water chestnut farmers, government and processing companies. also, the author applied a tool of system theory to analyze the constraints of water chestnut plant production development. the results are as following : the study shows that a main factor that restricts the plant yield ( per unit yield ) and quality ( product quality ) of water chestnut is the low level of prevention and control of water chestnut culms damping - off ; a disease of the water chestnut
針對賀州市荸薺產業發展中的「銷大於產」的突出矛盾，筆者通過運用pra （參與式農村評估）方法，對荸薺種植區的農戶、政府機構、加工流通企業等進行了調查研究，並運用系統科學的方法對荸薺種植系統的不同組成因子的制約因素進行分析，得出研究結論如下：農戶對荸薺稈枯病害的綜合防治水平偏低，制約其荸薺種植的產量（單產）和質量（商品質量） 。 -
A unit of electrical conductance in the international system, equal to one ampere per volt
我們用以表示電壓和電流的單位分別為伏特和安培。 -
The more intensive the agricultural production system, the greater the energy required per unit of productions.
農業生產體系越集約，其單位產品所需要的能量就越多。 -
The full color of led display system adopts nowadays the newest led technology and controlling theory which makes its price lower, capability more stable, power consumption lower, resolution degree of per unit area higher, the color more reality and enrich, electronic parts when composing system fewer, the rate of error reduces. full colors of indoor
全彩led顯示屏系統，採用了當今最新led技術和控制理論，使全彩色led顯示屏價格更低性能更穩定功耗更低單位面積解析度更高色彩更逼真豐富組成系統時電子組件更少使得故障率降低。 -
This paper introduced the experimental results for ground - source water / water heat pump, analyzed the effects of the variety flux on system performance coefficients, which showed that the optimal operation flux is 1000 ( l / h ) and provided the heat exchange rate per unit depth of coil, 45 80 ( w / m ). compared the exchang - heat - curveline in winter with that in summer, through which showed the advantages of gshp in mode of heating and cooling on long - period operation
本文介紹了地源水-水熱泵全年冬夏暖冷聯供的實驗結果以及過渡季地溫的恢復情況，分析了系統流量對熱泵性能參數的影響，獲得了最佳運行流量為1000 （ l / h ） 。並實測得到單位管深換熱率及埋管的有關性能指標。 -
Today, increasing of capacity per unit of transformer has been accompanied by enlargement of power net system, so research subject mentioned above is very useful and important
目前，變壓器的單機容量隨著電力系統的規模擴大而不斷增大，上述問題就顯得尤為重要。 -
A ejector for is applied in this theory. it can not only regulate the evaporating temperature of each high - temperature refrigeratory but also reduce the back - pressure of the compressor when a system applies this theory. at the same time, the exhaust temperature of the compressor becomes low and the refrigerating capacity per unit of swept volume becomes high
鑒于目前這種現狀，本文提出了以噴射器為基礎的船舶高、低溫冷庫製冷新循環，不但可調節高溫庫的蒸發溫度，而且也可使壓縮機的回氣壓力得到提高，壓縮機排氣溫度降低，單位容積製冷量上升，製冷系數提高，火用效率提高。 -
In order to compare the influence of the initial refrigerant and the new refrigerant to test system better, the volume refrigeration capacity per unit, cop and the ratio of pressure were calculated and compared from the basic refrigerant loop
為了更好的比較原有製冷工質和新型替代工質對測試系統的影響，本文從基本的製冷循環出發，對循環的單位容積製冷量、 cop以及循環壓比等參數進行了計算比較。
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