per unit area 中文意思是什麼

per unit area 解釋
每一單位面積
  • 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...
  • area : n. 1. 面積；平地；地面。2. 空地；〈英國〉地下室前的空地。3. 地區，地方；〈比喻〉區域；范圍。
  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. 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。
  3. 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。
  4. The drag is a force per unit area of the layer.

    拖力是流層單位面積的力。
  5. 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。
  6. 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。
  7. Four components contribute to rice grain yield including the panicles per unit area, the number of spikelets, the percentage of, and the weight of ripe grains

    四個水稻籽粒產量構成因素為單位面積穗數、小穗數、成熟籽粒百分數和成熟籽粒重量。
  8. Measures in force per unit area [ i. e. pounds per square inch ( psi ) ] the ultimate stress that can be withstood by a material in tension prior to failure

    在出現問題前材料單位面積所能承受的極限拉力，例如：磅每平方英寸（ psi ） 。
  9. There are two main components that contribute to livestock output per unit area under grazing conditions.

    在放牧條件下，決定單位面積的牲畜產量，有兩個主要因素。
  10. Geotextiles - determination of mass per unit area

    土工布單位面積質量的測定方法
  11. Large capacity per unit area, high screening efficiency

    單位面積產量大，篩分效率高。
  12. Geomembranes. determination of mass per unit area

    地膜.單位面積質量測定
  13. Hole density : the number of holes per unit area on a pcb

    孔密度： pcb上單位面積上的孔數。
  14. Textile glass - glass mats - determination of mass per unit area

    玻璃纖維氈片單位面積質量的測定
  15. Test method for measuring mass per unit area of geotextiles

    測量單位面積土工織物所通過的物質量
  16. Hor izontal film evaporators have the following advantages : large capacity per unit area ; short drying time ; adjustability of thickness of film ; adequate process co ntrol

    臥式薄膜蒸發器具有處理量大、時間短、可調節膜的厚度和容易控制的優點。
  17. Candles per unit area

    單位面積燭光數
  18. Pyramid of biomass a type of ecological pyramid based on the total amount of living material at each trophic level in the community, which is normally measured by total dry weight or calorific value per unit area or volume, and shown diagrammatically

    生物量金字塔：指基於群落每個營養水平上有生命的物質總量的一種生態金字塔類型，通常通過總干重或者每單位面積或體積的生熱量值來衡量，並用圖表表示出來。
  19. Test method for grammage of paper and paperboard weight per unit area

    紙張及紙板基本重量測試方法
  20. Standard test method for grammage of paper and paperboard mass per unit area

    紙張及紙板的基本重量的標準試驗方法
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