阻碍

USC team reveals structure of APOBEC family protein - Researchers at the University of Southern California have provided the first 3-D view of a protein from an enzyme family that, through its ability to mutate genes, can both help and hinder human health.

家庭补贴队揭示蛋白质结构apobec -美国南加州大学的研究人员提供了一次三维鉴于从酶蛋白家族，通过基因变种能力，一方面有助于人类健康和阻碍。

Cushion is a key technique of composite foundation, which is designed by experience now.

这种局面如不有所改观，必然阻碍复合地基技术的发展。

Related to good planning is the focus of a good deal with complex and ecological landscape of the space layout, so a moderate distance, high and low for, building an appropriate arrangement, should not because the existence of buildings, and on the surrounding ecological landscape resources hinder the formation of ornamental.

与良好的规划的重点是一个很好的处理复杂的和生态景观的空间布局，因此，温和的距离，高，低的，建立一个适当的安排，不应该因为存在的建筑物，并在周围的生态景观资源，阻碍了形成观赏。

Outside the constraints that a component deformation by other components of obstruction, or a component deformation by another member of the obstacles, such as the circle beam on the floor of the binding effect.

外约束指一个构件变形受到其它构件的阻碍，或一个构件变形受到另一个构件的阻碍，如圈梁对楼板的约束作用。

"Encumbrance" means any claim, charge, mortgage, lien, option, equity, power of sale, hypothecation, usufruct, retention of title, right of pre-emption, right of first refusal or other third party rights or security interest of any kind or an agreement, arrangement or obligation to create any of the foregoing and "Encumber" shall be construed accordingly

&阻碍&指任何索赔，收费，抵押，留置，选择，资产净值，销售权，担保契约，使用权，权利保持力，先占权，先拒权，或者其他第三方权利或者任何种类的担保物权，或者为了创造前述的任何方面的一个协议，安排或者义务，阻碍要针对性地解释。

Attenuation vs repression The trp operon is regulated by both repression(which determines whether transcription will occur or not)and attenuation.Other operons for amino acid biosynthetic pathways may also be regulated by both repression and attenuation or only by attenuation.

弱化作用与阻遏作用的比较 trp操纵子同时受到弱化作用和阻碍作用的调控，其他氨基酸生物合成途径的操纵子也可能受弱化作用和阻碍作用的调控，或者仅有弱化作用调控。

The central 5, 5'-disubstituted bipyridine units of each ligand coordinate theNi or Fe ion, while all the terminal 6-monosubstituted bipyridine units of the ligands keep free of coordination, as the result trinuclear triple-stranded helicate 〓 can not form. This is considered to be caused by the steric hindrance of the methylene substituents α to the chelating nitrogens of the terminal bipyridine units and the strain caused by linkage mode.

配体L〓与Ag作用得到〓，两个配体链相互缠绕着两个Ag离子周围形成双股螺旋结构并以头尾式排列(见图3)，由于配体中位于配位N原子α或β位的末端甲基或次甲基取代基的空间位阻阻碍了头对头式异构体的形成，也正是由于配体头尾式排列而使Ag双股螺旋得以形成，这一结果表明该螺旋体的组装过程中自发地采取了空间阻碍尽可能小的那个构型。

This paper introduces present status, future needs and development of coal washing, analyzes the obstacles to the development of steam coal washing from the view of market, policy and technology.

本文分析了中国的煤炭洗选现状、今后的洗选需求以及发展方向，从市场、政策、技术等方面分析了阻碍中国煤炭洗选尤其是阻碍动力煤洗选的方面的障碍，并据此提出了政策建议。

This paper introduces present status, future needs and development of coal washing, analyzes the obstacle s to the development of steam coal washing from the view of market, policy and technology.

本文分析了中国的煤炭洗选现状、今后的洗选需求以及发展方向，从市场、政策、技术等方面分析了阻碍中国煤炭洗选尤其是阻碍动力煤洗选的方面的障碍，并据此提出了政策建议。

"P" as in the word "pie": pot, pain, pace, people, person, pencil, cap, mop, map, etc."pp" as in the word "apple": appear, happy, pepper, apply, grapple, etc.

发音要决：舌尖抵住上齿龈根部，形成气流阻碍，然后气流突然冲破阻碍，发出爆破音。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了