查询词典 turning point

When the deal was struck in 2008 China's appetite for the metals was insatiable, but if it is scaled back or unravels, it could mark a turning point in China's quest for resources, which has threatened to marginalise western donors.

当该协议在2008年达成时，中国对金属的需求似乎是无止境的，但如果该协议缩小规模或落空，它可能标志着中国寻求资源过程的一个转折点，这一过程已产生排挤西方捐助方的威胁。

Weaning the baby is a very important period of life is the baby a big turning point.

断奶对婴儿来说是一个非常重要的时期，是婴儿生活中的一大转折。

However, in economic terms they are not the "turning point" that some commentators have suggested.

然而，从经济上来说，本届奥运会本不是像一些评论家说的那样是中国的转折点。

Junctions turning point in life, you help me again and again, again and again for different points of view or a fancy quarrel.

在人生转折的路口，你一次又一次的帮助我，一次又一次为不同的观点或者某个花式的争吵。

Getting the criminal compensation claim you deserve can act as a turning point in your trying times, since it could heal a few psychological scars.

获得刑事赔偿要求，你们应该可以作为一个转折点，在你困难的时候，因为它可以治愈数的心理创伤。

Getting the criminal compensation claim you deserve can act as a turning point in your trying times, since it could heal a few psychological scars.

刑事赔偿要求越来越值得您可以作为你的一个转折点试图时报既然能治好几个心理创伤。

A simple but efficient algorithm for separating head and shoulder is proposed based on searching for the greatest degree turning-point in head-shoulder contour curve.

提出一种简单而高效的基于查找人头肩像轮廓最大转折点的头肩分离算法。

The phase equilibrium data of SBO-FAME-Methanol, SBO-FAEE-Ethanol and Glycerol-FAEE-Ethanol systems were measured. The results indicated that it involved two different stages: liquid-liquid-solid reaction stage and liquid-solid reaction stage. When the molar ratio of methanol to oil is 12:1 at 65℃, the turning point is at a 55% biodiesel yield. The liquid-liquid-solid reaction model was proposed based on the double-membranes theory. It indicated that the process is reaction and mass transfer controlled together at the first stage, and the second stage is reaction controlled. The predictions of the model are matched with the experimental results.In the end, the acid was extracted using methanol and ethanol from jatropha curcas l oil.

测定了生物柴油制备过程中的SBO-FAME-Methanol、SBO-FAEE-Ethanol、Glycerol-FAEE-Ethanol三组分相平衡数据，表明固体碱催化过程分为液-液-固和液-固两个反应阶段，在醇油摩尔比为12：1、65℃的初始反应条件下，转化率达到55%时，为第一阶段向第二阶段的转折点；基于双膜理论建立了固体碱催化制备生物柴油的非均相液-液-固反应模型，表明两个反应阶段分别为传质、反应共同控制和反应控制，模型计算值与实验值吻合较好。

The technology of single point diamond turning is a new technique widely used in the world since 1980's, it is very useful for ultra precision machining .

单点金刚石切削技术是上世纪80年代以来国际上推广应用的一项新技术，是实现超精密加工的有效技术途径。

The basic principle and algorithm of molecular dynamics simulation are introduced, and the applications of molecular dynamics in the study of cutting mechanism of single point diamond ultra precision turning in oversea are summarized.

介绍了分子动力学模拟的基本原理和算法，综述了国外应用分子动力学研究单点金刚石超精密车削机理的进展情况，并提出了该领域今后的研究方

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。