length cultivation 中文意思是什麼
length cultivation
解釋
行間中耕- length : n. 1. 長，長度，長短。2. （時間的）長短，期間。3. （賽艇的）一艇的長度；一馬的長度。4. 程度，范圍。5. 【板球】球程；投至適當距離的球。6. 【語言學】音長。7. 一段，一節。
- cultivation : n. 1. 耕種，耕作；中耕；開墾；造林；栽培；（細菌等的）培養；（魚等的）養殖。2. 教養，研究，修養；優雅，高尚。
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The thesis shows its originality in the following aspects : first, it attempts to take a positive mean to explore the cultivation functions of chinese mass media and gives a systematic test of the relation between the perceived reality, media reality and the objective reality ; investigates media effects on the audience and their outlooks, and comes to the conclusion that the length of watching tv is not the leading factor affecting the cultivation effects and it doubts the applicability of the cultivation assumption in china. second, it scans all the tv series shown in different provinces in china, does a sample analysis and outlines the violence on screen in china
本論文在如下方面具有創新意義：首次嘗試以實證方式探討我國大眾傳媒的涵化（培養）功能，比較系統地檢驗了觀念現實、媒介現實及客觀現實三者之間的關系，考察了媒介現實對受眾觀念的作用，發現收視時長並非影響涵化效果的決定性因素，從而對涵化基本假設在中國的適用性提出質疑；首次對全國省級以上衛視臺黃金時段播出的電視劇進行全面掃描和抽樣分析，勾勒出中國大陸熒屏暴力的基本素描。 -
6. transformation system of mustard a serials of kanamycin concentration was added to optimum medium to test the explants resistance capacity of two kinds of mustard. the transformation procedures described were derived from numerous regeneration and trasformation designed to test factors that might affect shoot regeneration, which including length of co - cultivation. those producing the best result parameters were described as below : after the mustard explants were precultured on regeneration medium for 2 days. they were inoculated with agrobacterium for 20 minutes. inoculated explants were co - cultivated for 4 days and in shadow at first 2 days. then transferred to the same medium plus 30 mg / l kanamycin and 500mg / l garb. all of them were transferred to fresh medium every 2 weeks. the kan - resistant plants were regenerated
芥菜外植體高頻遺傳轉化體系的建立在最適培養基上試驗了兩類芥菜的三種外植體對卡那黴素的敏感性、預培養天數、浸菌時間等因素的影響，建立了芥菜高頻轉基因再生體系：取生長4天的芥菜子葉、下胚軸和25天的葉片在分化培養基上（ ms + ba3 . 0mg / l + naa0 . 1mg / l ）預培養2 - 3天後，投入農桿菌菌液中浸染20分鐘，在分化培養基上暗培養2天，正常條件下培養2天後，轉入抗性培養基（ ms ba3
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