查询词典 essential

They are storehouses of biological diversity and endangered species and an essential part of the global ecosystem.

它们是生物多样性和濒危物种的仓库，是全球生态系统的一部分。

Because of the specific role of the virus in the womb to help build the placenta, which for the maintenance of the survival of mankind and advanced biological reproduction and population development is essential.

因为病毒的具体作用是在子宫中帮助建立胎盘，这对于维持人类和高级生物的生存繁衍和种群发展是至关重要的。

And the evaluation of the biometrics algorithms, which is the essential part of the products, turned to be particularly important.

而对作为生物特征识别产品核心部分的识别算法的测评，则成为了非常重要的一环。

Water and soil resource are important substantial basic of people's subsistence and development,especially are essential conditions of agriculture production, a mass of water and soil loss became a global bionomics question.

水土资源是人类生存和发展的重要物质基础，是进行农业生产的基本条件，大量的水土流失已经成为不可忽视的全球性生态问题。

Using knowledge and systems of ethnics, economics and bionomics, on the basis of analyzing relative research at home and abroad, this thesis at the first time analyzes the theoretical base and essential theory of GPM and makes up a methodology of GPM. On the basis of analysis and research on the current situation of GPM in our country, this thesis finds out some measures on how to promote our country's Green Management Project System.

论文运用伦理学、经济学及生态学的知识与体系，运用整合的思想方法，从系统和整体的角度，在分析、综合国内外相关研究成果的基础上，首次对绿色项目管理的理论基础、基本理论进行了比较全面和深入的分析和研究，初次构建了绿色项目管理的方法体系，在分析和研究我国绿色项目管理现状的基础上，提出了促进我国绿色项目管理体系建设的若干对策。

Biotin is an essential vitamin for the skin, hair and nails.

生物素是必要的维生素，为皮肤，头发和指甲。

Biotin is an essential cofactor that is important for energy production and lipid metabolism.

生物素也是协助产生体能的辅助因素，对优化能量供应链和协调脂肪代谢非常重要。

Biotin: is an essential B-vitamin important for the growth of healthy cells.

生物素：是必不可少乙维生素重要的增长健康细胞。

Soft soled moccasins became essential for kneeling in birchbark canoes, and for walking with rigid snowshoes.

软底马克辛鞋在划桦木独木舟和套上僵硬的雪鞋时就成了必要的了。

Chemical modification of the xylanase with NBS and WRK revealed that trytophan and glutamate/aspartate were essential for the activity. 3.0 mgmL^(-1) birchwood xylan could completely inhibit the inactivation of xylanase by NBS.

木聚糖对NBS的修饰有抑制作用，3.0mgmL^(-1)的桦木木聚糖底物可完全阻止NBS对耐热木聚糖酶的修饰作用，但木聚糖底物不能阻止WRK对耐热木聚糖酶的失活作用。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。