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We are all too familiar with tanned hefty young instructors trying to carve a 17 meter radius turn around a tree, riding a ski edge that is cut for a 12 meter radius. Since the edge cut restricts the turn to a 12 meter track, they usually hit the tree, unless they sideslip out of their carving rail.

众所周知，当健壮的年轻教练们要用12米半径的刻滑板绕一棵树刻滑出17米半径的轨迹时，由于板刃限制的刻滑半径为12米，通常他们会撞树，除非轨迹侧滑。

The analysis of polymer structure indicates that the non-crystalline phase is the majority of the agglomerate structure and the crystalline phase is the minority, the highest crystal value only reaches the level of 0.1646;There is a definite interactionadditives and PVA, which not only reduces the crystal value of ASPE to make amorphous areas enlarge but also improve the ability of segmental motion by destroying the well-regulated and orderly character of polymer chain, meanwhile restricts the mobility of potassium cation and enhances the anionic transference number of hydroxide ions, all these improve the ionic conductivity;The ionic conductivity occurs essentially within the amorphous phase of the ASPE;The structure of ASPE doesnt change in the range of our test temperature, this means, the temperature only takes effect on degradation of complex in certain compositions, ionic mobility and segmental motions of the polymer chain.

聚合物结构分析表明：碱性固体聚合物电解质中凝聚态结构以非晶态为主，仅有少量的晶态，结晶度最大为0.1646；添加的各组分与PVA之间都有一定的相互作用，这种作用不仅破坏了聚合物链段的规整性，能够降低聚合物的结晶度，增大无定形区域，提高链段运动的能力，同时这种作用限制K~+离子的运动，提高OH~-的迁移率，从而提高离子电导率；碱性聚合物电解质的离子传导主要发生在无定形区；在本实验测试离子电导率温度范围内，聚合物内部的结构不会发生变化，即温度只会影响电解质内部络合物解离程度和载流子迁移以及聚合物链段运动的情况。

The author tries to analyse the immanent cause that restricts exploration benefit change, discuss the main train of thought that begins oil gas exploration to invest rationality relation to consider.

作者试图分析制约勘探效益变化的内在原因，探讨开展油气勘探投资合理性关系研究的基本思路。

A focus on build restricts these tools to only providing proper CI support for trivial projects.

焦点在构建上限制了这些工具仅能向一些小的项目提供适当的持续集成支持。

Under the traditional enterprises system, the prior-to-inner-finance financing method restricts the scale of demand and supply of bond market, which makes government bond market dominate capital market being the initial category in quite a long time.

在传统企业制度下，以内部融资为主的融资方式制约了债券市场的需求和供给规模，使得政府债券市场作为资本市场的最初范畴在相当长的时间内占据主体地位。

The sulphur dioxide pollution has become restricts our country economy and the social development important attribute.

二氧化硫污染已成为制约我国经济和社会发展的重要因素。因此控制二氧化硫排放刻不容缓。

Partial abrasion of rod string in screw pump well which is surface driven is the main reason that restricts its application, but the prevention method used presently cant solve the problem radically.

地面驱动螺杆泵井抽油杆的偏磨是制约螺杆泵应用的主要原因，目前采用的防治方法不能从根本上解决该问题。

The internal control is for the reasonable guarantee unit operative activity benefit, the financial report reliability and the laws and regulations follows the nature, but inspects, restricts and adjusts the internal operational activities voluntarily the self-containing unit.

内部控制是为合理保证单位经营活动的效益性、财务报告的可靠性和法律法规的遵循性而自行检查、制约和调整内部业务活动的自律系统。

If we introspect our moral education, we can easily see the eco-crisis existing, which seriously restricts the effectiveness of morality education in school.

以生态世界观审视我国学校德育，不难发现存在着一定的生态危机，严重制约了学校德育的有效性。

Especially in countries with undeveloped transport infrastructures, geography restricts food availability as dramatically as genetics promises to improve it.

尤其在运输基础设施落后的国家，地理条件对食物供给的限制正如遗传学为食物供给带来的希望一样大。

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。