有机化学

Aromaticity is the important concept in the field of organic chemistry and its application and the range of its application are increasingly enlarged.

芳香性是有机化学领域的重要概念，其应用与适用范围日益扩大。

The synthesis and properties of metal-carbyne complexes is always a hot topic in the research field of organometallic chemistry since the first synthesis of transition metal complexes with a formal metal-carbon triple bond reported by E.O.

自从1973年E.O.Fischer合成了第一个含有金属碳叁键的金属卡拜化合物以来，金属卡拜化合物的合成和反应性能一直是金属有机化学中的前沿研究领域之一。

It is a difficulty in organic chemistry teaching.

同时也是有机化学教学中的一个难点。

Addition to carbonyls is one of the most important reactions in organic chemistry.

对羰基的加成作用是有机化学中最重要的反应之一。

I am not good at organic chemistry.

我的有机化学学得不好。

The development of new synthetic methods and technologies is one of the most important areas in organic chemistry.

有机合成新方法、新技术是有机化学研究的前沿和热点领域之一。

Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China

中国科学院上海有机化学研究所，上海 200032

As an important and fundamental course, organic chemistry has its own characteristics and special knowledge system.

有机化学》作为一门重要的基础课程，具有自己特有的知识体系和特点。

Shanghai Institute of Organic Chemistry, The Chinese Academy of Sciences, Shanghai 200032, China

中国科学院上海有机化学研究所，上海 200032

Beijing(100080);Institute of Organic Chemistry, Chinese Academy of Sciences.

北京(100080)；中国科学院上海有机化学研究所。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。