查询词典 expressional

For the purpose of constructing mammary gland specific expressional vector, we use the updream regulation sequence of bovine BLG to regulate lacS gene to express in mammary gland. Positive clone cells are selected and purified by the expression Neo gene and report gene EGFP. So the cells can be used as sources to create transgenic animals by nuclear transfer techniques.

本研究以牛β-乳球蛋白基因上游调控成分作为启动子，嗜热菌糖苷酶基因lacS为目的基因，构建了lacS基因乳腺特异表达载体，并通过脂质体介导法转染体外培养的牛胎儿成纤维细胞，借助新霉素抗性基因和增强型绿色荧光蛋白报告基因来筛选、纯化阳性克隆细胞，为利用核移植技术制备转基因动物提供细胞来源。

One, use a picture," of circumstances of activate " problem, education is with graph habit in geographical education, use expressional model, the map that the thing is resembled or representative nature is resembled via be of use, drawing, photograph, profile, sketch map, the specific figure that helps a student achieve all sorts of geographical things or appearance and idea, again activate problem circumstances, carry

一、利用图片，创设&新问题情境&，培养用图习惯在地理教学中，利用表现典型的、有代表性的自然事象或经济事象的地图、图画、照片、剖面图、示意图等，帮助学生获得各种地理事物或现象的具体形象和观念，再创设新问题情境，提

Construction of the homologous arms directing the homologous recombination For the sake of seeking for the more efficient integrating strategy to make the foreign gene insert in the specific site and don't destroy the host expressional and regulatory elements such as promoters and introns, we experimented targeting the Bombyx morl fibroin heavy-chain exon II with the green fluorescent protein gene by homologous recombination technology.

为了探索一条更为有效的整合策略，使外源基因能定点整合到靶位点，又不破坏宿主基因的启动子、内含子等表达调控元件，令外源基因对宿主生理功能的影响达到最小，我们以丝素重链基因2号外显子为整合靶位点，以便将外源基因定点整合其间。

Each society has its common sense and each language has its cultural features and idiomatic expressions, which cause great differences on expressional ways and understandings of figurative language.

由于每个社会群体都有自己的共识，每一种语言都有其文化特点和习惯表达方式，不同的语言文化习惯使得比喻在其表述和理解上产生了极大的差异。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。