The book deals with the essentials of English grammar.

这本书论述英语语法的要点。

What is the essential difference between these two economic systems?

这两种经济体制的本质区别是什么?

Delete what is dispensable and give more prominence to the essentials.

可以不说的去掉，该说的就可以更突出。

LuXun -died the essential character is tics of China's intellectuals.

鲁迅是中国知识分子的主要特性的具体代表。

First quests the essential connote of the beauty of neuralization from character angle.

(一)、从文字学的角度考察“中和”之美的本质内涵。

Design storm hyetograph is the essential element for hydrologic modeling analysis and storm water drainage design.

摘要设计暴雨雨型对水文模式分析与暴雨排水设计是不可或缺的基本要素。

The essential blocks of the synthesizer, the prescaler, the phase detector, the chargepump, and the voltagecontrolled oscillator were presented.

提出了合成器的基本模块，包括预分频器，鉴相器，充电泵和压控振荡器。

Objective:to study the chemical constituents of the essential oil of Inula helenium L.were extracted by steam distillation(SD)and supercritical-CO2 fluid(SFE).

研究土木香挥发油的化学成分,并比较水蒸气蒸馏提取(SD)与超临界CO2萃取(SFE)所得土木香挥发性成分的差异。

One variation stems from the categorical status of the adjectives of which gradability is the essential feature for a comparative predicate.

其中一项差异源自于比较述语的基本特性，也就是语言中的带有层级性的词汇。

The essential of propagandized differences is erased by themselves.In fact, the instantaneousness in the emotional communication through short messages is non-instantaneous.

短信所宣传的情感交流的即时性其实是非即时的。

The essential oil of fennel was obtained by the hydrodistillation, and the volatile flavor components were separated from fennel oil by HSCCC.

以小茴香为原料,采用水中直接蒸馏的方法提取小茴香精油。

The essential feature of monomer molecules is the ability to form chemical Bonds (see Bonding) with at least two other monomer molecules (polyfunctionality).

单体分子的基本特性是至少能与两个其它单体分子形成化学键的能力(多功能性)。

Results Forty-seven components were identified and Caryophyllene oxide, Spathulenol, Cyclododecane and Dodecanoic acid were found to be the major components of the essential oils.

结果从贯叶连翘挥发油中鉴定了47种化合物,其氧化石竹烯、斯巴醇、环十二烷、月桂酸等化合物为贯叶连翘挥发油的主要成分。

Applying : You can apply the essential oil to your skin when culicid sting you.It has the function of detumescence and relieving itching.You can anoint with it before the culicid bite you.

被蚊虫叮咬可直接涂抹于皮肤，具消肿止痒功效，亦可先涂抹来防止蚊虫叮咬。