reproductive value 中文意思是什麼

reproductive value 解釋
繁殖值
  • reproductive : adj. 1. 生殖的。2. 再生產的，再現的。3. 多產的。adv. -ly
  • value : n 1 價值；重要性；益處。2 估價，評價。3 價格，所值；交換力。4 （郵票的）面值。5 等值；值得花的代...
  1. This is so because climbing plants are likely to encounter intensive - changing environmental condition during their growth ( especially change of illumination ). secondly, there is a large proportion ( 30 - 40 % ) of climbing plants which belong to dioecism, and hence a gap between male and female plants on morphology, biological characteristic, economic value and so on. this dissertation focuses on herbaceous climbing plants, perennial or annual species such as dioecious trchosahthes kirilowii maxin and dioscorea opposita thumb, and monoecious luffa cylindrical ( l ) roem, it attempts to discover how climbing plants adapted to various environments and the mechanism of adaptation from aspects of physiological and reproductive ecologies at present, due to overuse of chlorofluorocarbons ( cfcs ), the ozonosphere has become thinner and thinner, and the ultraviolet - b ( uv - b ) radiation has increased considerably

    而攀援植物本身是一類理想的植物行為生態學研究材料：第一，攀緣植物由於受攀緣能力和支柱木資源的限制，在生長過程中通常要遇到強烈變化的環境條件（特別是光照） ；第二，攀緣植物中具有較高比例的雌雄異株類型，通常佔地區攀緣植物種類的30 40左右，不同性別的植物在形態學及生物學特性、經濟價值等方面存在一定的差距，因此，本文以雌雄異株攀緣植物栝樓（ trchosahtheskirilowiimaxim ） （葫蘆科多年生草質藤本植物）和山藥（ dioscoreaoppositathunb ） （薯蕷科薯蕷屬植物） 、雌雄同株異花攀緣植物絲瓜[ luffacylindrical （ l ） roem ] （葫蘆科一年生攀緣草本植物）為材料，試圖從生理生態學及生殖生態學角度揭示攀援植物如何適應不同生境及其機理。
  2. According to the biological characteristic, especially the reproductive habit, the present resources and economical value, measurements of protection and development of the sturgeon fishery were put forward

    根據黑龍江鱘科魚類資源現狀、群體結構變動情況及其生物學特點，闡明了保護和發展黑龍江鱘科魚類的必要性並提出了建議。
  3. The loach is a kind of food, rich in economic value. the author has made the rapid development of loach possible by injecting the oxytoein to the loach, controlling the time for its spawn and improving its reproductive capacity artificially, which provides a lot of loach seeds for its breeding

    泥鰍是一種經濟價值很高的食品，作者通過對泥鰍進行催產激素的注射試驗，人為控制泥鰍的產卵時間，提高泥鰍繁殖能力，從而為泥鰍養殖提供大量的魚種，為其迅速發展提供了可能
  4. The application value of time - to - pregnancy as a screen indicator for early reproductive damage

    妊娠時間作為妊娠早期生殖損傷篩選指標的探討
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