必需性,ESSENTIAL,在线英语词典,英文翻译,专业英语

1) ESSENTIAL

必需性

2) biological essentiality

生物必需性

A review with 45 references is given on the biological essentiality of rubidium and its health effects on humans,including the brief history of biological research in rubidium,the nutritive essentiality of rubidium,the physiological function and biological action,etc.

综述了铷的生物必需性及其对人体的健康效应 ,包括 :铷的生物学研究简史 ,铷的营养必需性 ,铷的生理功能和生物学作用 ,人体的铷摄入量。

A review with 18 references is given on the biological essentiality of lithium and the health effects in humans.

综述了锂的生物必需性及人体健康效应。

3) obligatory inclusion

必需性包含

The syntax and semantics of structural integrity constraints are defined,such as element exclusive inclusion,obligatory inclusion,path implication,path mutual-exclusion and path cooccurrence.

提出了基于元素的结构完整性约束和基于路径的结构完整性约束的概念,定义了排他性包含、必需性包含、路径蕴涵、路径互斥和路径同现的语法和语义,研究了它们的性质以及它们与DTD的关系,在此基础上,给出了将不能用DTD表达的结构完整性约束添加到DTD中的方法。

4) essential

必需

Analysis of the Principle-″essential, adequates″Elementary theory knowledge in HVTE;

对高职基础理论知识“必需·够用”的思辨

Methods The four essential fatty acids of cord and venous blood on the 14th day after birth were measured in 16 breastfed and 12 formularfed full term normal delivered babies by gas chromatography.

目的　探讨不同喂养方式对新生儿必需脂肪酸水平的影响。

5) Essential groups

必需基团

The essential groups of three N acetylglucosaminyltransferases(GnTs) of rat kidney were studied by using chemical modification and substrate protection methods.

用化学修饰法和底物保护法研究了大鼠肾脏３种Ｎ－乙酰氨基葡萄糖转移酶（ＧｎＴ）的必需基团，发现氨基和吲哚基为ＧｎＴ－ＩＩ、ＧｎＴ－ＩＶ和ＧｎＴ－Ｖ共同的必需基团，其中氨基可能参与和共同供体底物ＵＤＰ－ＧｌｃＮＡｃ的结合，吲哚基对ＧｎＴ－ＩＩ和ＧｎＴ－ＩＶ可能是受体底物——七糖糖链Ｇｎ２Ｍ３Ｇｎ２－ＰＡ的结合基团，而对ＧｎＴ－Ｖ可能是不参与底物结合的必需基团。

6) necessary elements

必需元素

Cu, Se, Mn, Ni and V are necessary elements to plants growth .

铜、硒、锰、镍和钒是植物生长的必需元素。

The find drinking water demand a little or nought chemical and toxic elements, in the same time contain necessary elements.

饮用水中有机物与有毒元素含量是单向限值 ,在小于限值的前提下越低越好 ;而必需元素含量应是双向阈值 ,低于阈值下限或高于阈值上限都是对人体健康不利的。

参考词条

必需杆必需巯基必需的必需带宽必需酶非必需的必需氨基酸必需脂肪酸非必需基因随机通信卫星系统

补充资料：连续性与非连续性(见间断性与不间断性)

连续性与非连续性(见间断性与不间断性)
continuity and discontinuity

11an父ux泊g四f“山。麻以角g、.连续性与非连续性(c。nt，n琳t:nuity一)_见间断性与不间断性。and diseo红ti-

说明：补充资料仅用于学习参考，请勿用于其它任何用途。

首页 \| 翻译 \| 影视 \| 论坛 \| 索引必需够用必需基因必需水头非必需区医疗必需必需条件

1) ESSENTIAL 必需性 2) biological essentiality 生物必需性 1. A review with 45 references is given on the biological essentiality of rubidium and its health effects on humans,including the brief history of biological research in rubidium,the nutritive essentiality of rubidium,the physiological function and biological action,etc. 综述了铷的生物必需性及其对人体的健康效应 ,包括 :铷的生物学研究简史 ,铷的营养必需性 ,铷的生理功能和生物学作用 ,人体的铷摄入量。 2. A review with 18 references is given on the biological essentiality of lithium and the health effects in humans. 综述了锂的生物必需性及人体健康效应。 3) obligatory inclusion 必需性包含 1. The syntax and semantics of structural integrity constraints are defined,such as element exclusive inclusion,obligatory inclusion,path implication,path mutual-exclusion and path cooccurrence. 提出了基于元素的结构完整性约束和基于路径的结构完整性约束的概念,定义了排他性包含、必需性包含、路径蕴涵、路径互斥和路径同现的语法和语义,研究了它们的性质以及它们与DTD的关系,在此基础上,给出了将不能用DTD表达的结构完整性约束添加到DTD中的方法。 4) essential 必需 1. Analysis of the Principle-″essential, adequates″Elementary theory knowledge in HVTE; 对高职基础理论知识“必需·够用”的思辨 2. Methods The four essential fatty acids of cord and venous blood on the 14th day after birth were measured in 16 breastfed and 12 formularfed full term normal delivered babies by gas chromatography. 目的　探讨不同喂养方式对新生儿必需脂肪酸水平的影响。 5) Essential groups 必需基团 1. The essential groups of three N acetylglucosaminyltransferases(GnTs) of rat kidney were studied by using chemical modification and substrate protection methods. 用化学修饰法和底物保护法研究了大鼠肾脏３种Ｎ－乙酰氨基葡萄糖转移酶（ＧｎＴ）的必需基团，发现氨基和吲哚基为ＧｎＴ－ＩＩ、ＧｎＴ－ＩＶ和ＧｎＴ－Ｖ共同的必需基团，其中氨基可能参与和共同供体底物ＵＤＰ－ＧｌｃＮＡｃ的结合，吲哚基对ＧｎＴ－ＩＩ和ＧｎＴ－ＩＶ可能是受体底物——七糖糖链Ｇｎ２Ｍ３Ｇｎ２－ＰＡ的结合基团，而对ＧｎＴ－Ｖ可能是不参与底物结合的必需基团。 6) necessary elements 必需元素 1. Cu, Se, Mn, Ni and V are necessary elements to plants growth . 铜、硒、锰、镍和钒是植物生长的必需元素。 2. The find drinking water demand a little or nought chemical and toxic elements, in the same time contain necessary elements. 饮用水中有机物与有毒元素含量是单向限值 ,在小于限值的前提下越低越好 ;而必需元素含量应是双向阈值 ,低于阈值下限或高于阈值上限都是对人体健康不利的。参考词条必需杆必需巯基必需的必需带宽必需酶非必需的必需氨基酸必需脂肪酸非必需基因随机通信卫星系统补充资料：连续性与非连续性(见间断性与不间断性) 连续性与非连续性(见间断性与不间断性) continuity and discontinuity 11an父ux泊g四f“山。麻以角g、.连续性与非连续性(c。nt，n琳t:nuity一)_见间断性与不间断性。and diseo红ti- 说明：补充资料仅用于学习参考，请勿用于其它任何用途。
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