Synthesis and Structural Analysis of Schiff Base Cyclic Polyether Compound Bearing Hydroxy Functional Group

And if there is a hydroxyl in ortho position of carboxyl, the oxygen of hydroxyl and carboxyl in ligand are bound to Ti to form hexatomic cyclic compound.

而羧基邻位有酚羟基存在时，则配体以双齿形式与钛配位形成二茂钛六元环状化合物。

The ortho-compound formed penta cyclic compound was more stable that the meta-compound formed hexa cyclic compound, so the reaction rate of the ortho-compound is larger.

由邻位化合物生成的五元环络合物比由间位化合物形成的六元环络合物稳定性高，反应速度快。

This paper reviewed the application of Arsenic reagent in organic synthesis, cyclic compound, unsatured aldehyde ketone 、 amide 、 related natural product 、 derivative of ethyleneamine.

综述了砷试剂在合成元素有机化合物，环状化合物，不饱和醛酮、酰胺以及有关的天然产物，烯胺的衍生物等方面的应用。

The main pollutants were phthalates, phenols and cyclic compound which had a high percentages ( 85%-94%).

自来水处理前、后所含的主要污染物均是邻苯二甲酸酯及酚类，环状化合物所占比例很大（85%～94%）。

The simpler way to judge C~ R/ S patterns of cyclic compound

判定环状化合物C~R/S构型的简单方法

The methods of evaluation on pressure cyclic variation in a spark ignition engine are studied in this paper.

分析比较了火花点火发动机循环变动的评价方法，并提出了用各个曲轴转角下的压力变动率曲线表示压力循环变动的方法。

The dynamic variations of groundwater level are subject to cyclic variation of precipitations.

当地降水量的多年周期性变化决定了地下水位的多年动态。

Relationship Between Microstructure of Left Ventricle and Cyclic Variation of Myocardial Ultrasonic Backscatter Integration

左心室壁显微结构与心肌背向散射积分周期变化的关系

There is a peak value of coefficient of pressure cyclic variation in combustion process. pressure;

进气过程中也存在压力变动，其压力变动率高于燃烧过程；

The Influence of Operation Factors on Gasoline Engine Maximum Combustion Pressure Cyclic Variation

运转因素对汽油机最高燃烧压力循环变动影响的研究

Distribution Law of Peak Pressure Cyclic Variation in Gasoline Engine

汽油机最高爆发压力循环变动的分布规律

Experimental Research on Cyclic Variation of 6190 Natural Gas Engine

6190燃气发动机循环变动试验研究

Thirdly, there's less credit available for everyone because of the banking crisis than there would be in a normal cycle.

第三，由于银行危机，现在人均信用额比正常经济周期要少。

Meanwhile, fully proves that the sand layer moisture in the region has normal cycle and positive balance characteristics.

同时充分证明该区沙层水分具有正常循环和沙层水分具有正平衡的特点。

If the Earth stopped spinning, the normal cycle of day and night would end.

如果地球停止转动，平常的日夜交替将会终止。

In addition, The normal cycle and effective utilization of water environment can ensure the sustainable development.

而水环境系统的正常循环和利用，是经济可持续发展得重要保证。

We are not enjoying the normal cycle of economic improvement.

我们现在并未处在正常的经济复苏周期中。

Some people think that global warming is part of the people lies with a certain purpose, while others believe global warming is normal cycle of the Earth, others believe that global warming is a consequence of the increase in greenhouse gases.

有人认为全球变暖是部分人具有一定目的的谎言，也有人认为全球变暖是地球正常周期变化，还有人认为全球变暖是温室气体增加的后果。

We are halfway through the new normal cycle.

我们正处于新的正常周期的中途。

Using the program for triple effect lithium bromide absorption refrigeration thermodynamic calculating which developed by our research group, we studied a type of cycle named of counter series connection TC lithium bromide absorption refrigeration cycle.

根据本课题组人员完成的三效溴化锂吸收式制冷循环计算程序，对一种逆串联式三效循环进行了热力计算分析。