black stem 中文意思是什麼
black stem
解釋
黑莖病-
In this study, the stem segments of new shoot with axillary buds of well - growth tetraploid black locust trees were used as explants. the effects of different basic mediums, different hormone kinds and their concentrations ratios, different sucrose concentrations on calli induction, buds differentiation and rooting in the process of establishment of high frequency regeneration system of tetraploid black locust were studied. on the base of high frequency regeneration system, the effects of various factors on transformation efficiency of badh mediated by agrobacterium tumefaciens were discussed in the light of gus histochemical assays
本實驗首先以生長良好的四倍體刺槐優株上當年生新梢的帶腋芽莖段為外植體，研究了在四倍體刺槐高頻再生體系的建立過程中不同基本培養基、不同激素濃度及其配比、不同蔗糖濃度對愈傷組織的誘導、芽的分化及生根的影響；然後在得到高頻再生體系的基礎上，通過農桿菌介導法轉化甜菜堿醛脫氫酶（ badh ）基因，以gus染色組織分析為依據探討了影響轉化效率的各種因素，建立了高效、可重復的基因轉化體系，為四倍體刺槐目的基因的導入打下了基礎。 -
Foliage usually dark green ( or sometimes faded ) with dark brown or black necrotic spotting along major leaflet veins often appearing first on under surfaces and also along petiole ; profuse black spotting an sometimes black streaks along stems ) ( “ stem streak necrosis ” )
馬鈴薯錳中毒：葉片通常深綠（有時褪色） ，深褐色或黑色壞死斑點首先出現在表面內沿著主葉脈一直到葉柄，大量黑色斑點有時沿著莖連成一條黑色條紋（ 「莖條紋病」 ） 。 -
Chen - long dynasty black powder colors twining stem and open space with enamel colors tea pat which is rare, museum collected, govenment kiln products
藏品描述：乾隆期，墨彩纏枝，琺瑯彩開光把壺，罕見館藏級，官窯製品。 -
Given a stem & leaf plot, the six sigma black belt should be able to reproduce a sample of numbers to the accuracy allowed by the plot
給出一份莖葉圖， 6西格瑪黑帶應能復制出一個能夠達到該圖允許準確度的數字樣本。 -
Given a stem leaf plot, the six sigma black belt should be able to reproduce a sample of numbers to the accuracy allowed by the plot
譯文：給出一份枝葉圖，六西格瑪黑帶應該能夠重現一個能夠達到該圖所允許的準確度的數字樣本。 -
This study were designed to investigate development potency of the reconstructed embryos of black bear - cat inter - species nuclear transfer in vitro / vivo, to develop the principle and technology of somatic nuclear transplantation in inter - species of mammalian and to study the mechanism of coordination between cell nuclear and cytoplasm. somatic nuclear transplantation technology has been used to establish stem cell from different animals, which can provide materials to treat various diseases
本研究運用體細胞核移植的原理和技術，以六月齡雌性黑熊的成纖維細胞為供核體，去核未受精家貓成熟卵母細胞為受體，構建種間核移植重組胚胎，研究種問體細胞核移植胚胎的構建方法和重組胚胎的體內外發育潛能及其影響因素。
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