per unit 中文意思是什麼

per unit 解釋
按貨物件數、頭數計收運費（車輛、牛、馬、羊）
  • per :
  • unit : n 1 個體，一個，一人。2 （計值、組織、機構）單位；單元；小組，分部；【軍事】部隊；分隊。3 【機械...
  1. Acclimation of lamina mass per unit area, photosynthetic characteristics and dark respiration to growth light regimes in four tropical rainforest species

    光合特性和暗呼吸對生長光環境的適應
  2. Perhaps a key adaptive advantage of the angiosperm is their ability to construct wood with much less expenditure of energy per unit weight.

    也許被子植物適應優勢的秘訣就在於它們有能力形成每單位重量的木材可支付少得多的能。
  3. Twist factors for cotton yarns ; turns per unit length

    棉紗線捻度系數.單位長度的捻數
  4. Miniature evaporator is a compact exchanger with small volume, light weight, and big heat transfer area per unit of volume. it is an important application in the field of cryogenics and refrigeration

    微型蒸發器是一種體積小、重量輕、單位體積換熱面積大的緊湊式換熱器，在製冷低溫技術領域中有著重要應用。
  5. 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） 。
  6. Presents its principle and tests its performance, and the results show that it has larger dehumidifying capacity per unit electric power

    介紹了熱管調溫除濕機的工作原理並對所開發的熱管調溫除濕機進行了各種性能測試，結果表明熱管調溫除濕機具有較大的單位電能除濕量。
  7. Within the remainder of the dielectric the net charge per unit volume remains zero.

    在電介質的其餘部分，單位體積的靜電荷仍為零。
  8. The radioactivity of a sample is defined to be the number of disintegrations per unit time.

    樣品的放射性定義為每單位時間的蛻變數目。
  9. Standing crop the total weight of all the living organisms present in an ecosystem at a given moment, usually expressed as dry weight per unit area

    現存量：某一給定時刻，生態系統中所有活的有機體的總重量。通常的表述是單位區域的干重。
  10. The results show that : the main driving forces of arable land change of shouguang county are the per capita income, the ratio of the pasture output value, the ratio of the cropping output values and the ratio of agricultural labor force proportion ; the main driving forces of arable land change of quzhou county are the variation of grain yield per unit area, the ratio of the pasture output value, the ratio of the cropping output values, the ratio of grain field areas and the population density

    結果表明：壽光市耕地變化的主導驅動力包括人均收入、牧業總產值比例、種植業總產值比例和農林牧漁業勞動力；曲周縣耕地變化的主導驅動力包括糧食單產、牧業總產值比例、種植業總產值比例、糧田面積佔耕地面積比例和人口密度。在此基礎上，揭示縣域尺度上耕地變化的驅動機制，並為進一步進行土地利用覆蓋變化研究積累方法和經驗。
  11. Optical microscopy and electron microscopy were employed to study the microstructure and ultrastructure of the leaves of low temperature germplasm and measure or count the lengths of diachyma cells, number of diachyma cells per unit leaf area, chloroplast number per diachyma cell, the number of diachyma cell layers and the number of granum lamella of low - temperature wheat germplasm

    應用光學顯微鏡和電子顯微鏡研究了小麥低溫種質葉片顯微和超微結構，測量統計了葉肉細胞長度、單位面積葉肉細胞數目、單個葉肉細胞中的葉綠體數目、葉肉細胞層數和葉綠體基粒片層數。
  12. The drag is a force per unit area of the layer.

    拖力是流層單位面積的力。
  13. Contribution per unit of limiting factor ration

    單位限定因素的貢獻毛益比率
  14. The brightness or luminance of an object is defined as the luminous flux emitted per unit area of the object into unit solid angle.

    物體的亮度或發光率定義為物體面積發射到單位立體角內的光通量。
  15. For tobacco, hydrocarbon oil and methyl alcohol, duties are charged at specific rates per unit quantity

    煙草、碳氫油類及甲醇之稅款乃按每單位數量之特定稅率繳付。
  16. The ratio of stress to strain, or the stress per unit strain, is called an elastic modulus of the material.

    應力與應變之比，即每單位應變的應力，叫做該材料的彈性模量。
  17. Aerospace series - cables, electrical, aircraft use - test methods - ohmic resistance per unit length

    航空航天系列.飛行器用電纜.試驗方法.單位長度的歐姆電阻
  18. Comparative statement of monthly operative cost per unit

    每月單位作業成本比較表
  19. The number of panicles per unit area was the most important yield components in determining final yield

    單位面積小穗數是決定最終產量最重要的產量構成因素。
  20. The current is the charge flow per unit time.

    電流是每單位時間流動的電荷。
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