品種衰退 的英文怎麼說

中文拼音 [pǐnzhǒngshuāituì]
品種衰退 英文
variety decline
  • 品 : Ⅰ名詞1 （物品） article; product 2 （等級; 品級） grade; class; rank 3 （品質） character; qualit...
  • 種 : 種名詞（姓氏） a surname
  • 衰 : 衰動詞（衰弱） decline; wane
  • 退 : 動詞1 （向後移動） retreat; draw back; move back 2 （使向後移動） cause to move back; remove; wit...
  • 品種 : 1. [生物學] breed; cultivated varieties; strain; variety 2. （產品種類） variety; assortment
  • 衰退 : fail; decline; decay; rust; ruin; downturn; retrogression; retrogradation; recession; rustiness; ...
  1. A study on declining cause of varietal vitality in winter wheat

    冬小麥品種生命力衰退原因探析
  2. And another brake material formula also can be achieved in which the carbon fiber was replaced by the wood fiber based on the researching of the effect of fibre, resin and filler in multi - fibres hybrid composite test result shows that the formula material have a relatively suitable friction coefficient ( ranging around 0. 35 ), good fade resistance and recovery as well as low wear ratio. by comparing the formula material with the product of national and abroad sold in the market, its low cost and excellent properties make a bright prospect

    在研究各種纖維、樹脂和填料對混雜纖維復合摩擦材料摩擦學性能影響的基礎上，本文研製開發出分別適用於中重型車與中小型車用的剎車摩擦材料的最佳配方和一種含木纖維的多種纖維混雜復合摩擦材料的最佳配方。將所選配方的剎車材料與市售的國內外品牌剎車片進行對比，結果表明本課題所開發研製的摩擦材料的摩擦系數都在0 . 35左右，具有很好的摩擦系數穩定性和抗熱衰退性，磨損率也較小，綜合考慮到配方試樣原料成本較低，在性價比上具有一定的優勢。
  3. The distribution can be divided into realistic one and imaginary one. in input and growing stage the products of financial innovation are to be sold through realistic distribution, while in maturing and declining stage those should be put on sale through imaginary one, but the tow means is used throughout the whole process

    分銷渠道有現實分銷渠道和虛擬分銷渠道二種，在創新產品的投入和成長期以現實分銷渠道為主，在成熟期和衰退期以虛擬分銷渠道為主，但兩種手段交替著貫穿全過程。
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