basic degeneration 中文意思是什麼

basic degeneration 解釋
嗜堿變性
  • basic : adj 1 基礎的，基本的，根本的。2 【化學】堿性的，堿式的。3 【礦物】基性的，含少量硅酸的。4 【軍事...
  • degeneration : n. 1. 退步；惡化。2. 頹廢，墮落。3. 【生理】變性，變質。4. 【生物學】簡並，退化（病）。5. 【物理學】退化，簡並化。
  1. Based on the science of human settlements, the theory of urban growth, the theory of urban - rural integration and the theory of sustainable development, this paper proceeded with the prominent contradiction between urban growth and cave - dwellings " degeneration. after analyzing general situation and regional feature of qingyang, the actualities of cave dwellings were evaluated in the first place which including cave dwellings " history, basic style, regional feature, green principle, culture connotation, as well as traditional cave dwellings " shortage and developing dilemma

    本研究從城鎮增長和窯居退化這一突出矛盾入手，依據人居環境理論、城鎮增長理論、城鄉一體化理論、可持續發展理論，在分析慶陽概況與區域特徵的基礎上，首先對慶陽窯洞民居的發展現狀進行了評價，包括窯洞民居的歷史沿革、基本類型、地域特色、綠色理念、聚落景觀、文化內涵以及傳統窯居的局限性和目前發展的困境。
  2. Histopathologically, the basic change is cell degeneration.

    病理組織學檢查，基本變化是細胞變性。
  3. In the artificial - planting, the strain of cordyceps militaris is easy to degenerate. at present, the study about the fungus in cordyceps genus are just in the identification of fungi 、 the nutrition analysis 、 the using in medicine and artificial - planting. although, it could reduce the lost by the usual breeding way, we could not solve the problem at basic. about the degeneration of strain, people mostly use the gender - cycling 、 the fusing - cytoplasmic technology and the genetic - engineering method to reform the strain. most of people use moleculor method in the study of relationships among the species and between the species

    用常規選育方法雖然能減少一定的損失，但不能從根本上解決菌種退化這一長期困擾企業生產的問題。針對菌種退化問題，主要是利用有性循環、原生質體融合和遺傳工程等途徑進行菌株改良，應用分子生物學手段只是研究種內、種間的系統關系等，而關于菌種退化遺傳機理的研究尚未見報道。菌種退化是菌類栽培過程中普遍存在的，也是生產當中迫切希望得到解決的問題。
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