查询词典 ES

Secondly,the condition under which the Noether symmetry is a Lie symmetry is obtained.Finally,a generalization of Hojman theorem is given and two examples are given to illustrate the application of the result. analytical mechanics ; holonomic system ; symmetry ; conserved quantity

新近出现的形式不变性理论也取得进展[6～8]，文献[9]研究了完整力学系统由Lie对称性导致的Hojman守恒量，本文继文献[9]，研究完整力学系统由Noether对称性导致的Hojman守恒量。1 系统的Noether对称性与守恒量完整力学系统的运动微分方程为 Es=Qs (s=1，…，n)(1)其

Now when they shall fall, they shall be holpen with a little help: but many shall cleave to them with flatte***es.

11：34 他们仆倒的时候，稍得扶助，却有许多人用谄媚的话亲近他们。

"A homing pigeon's natural solar and magnetic compass es are often less important than its knowledge of human transport routes,"

对于信鸽而言，自然界的指南针(来自太阳能和磁场方面的)经常不如它们掌握的人类交通路线知识更重要。

Furthermore, the computer is the most obedient and diligent "house-keeper" or "servant" o f housewiv es; It is also a game expert admired by children.

甚至，它是一个家庭主妇们最听话、最勤奋的"管家"和"服务员"，它也是孩子们钦佩的游戏高手。

No, hoy es 30 de septiembre.

不是，今天是九月三十日。

These electrons may hit with the hydrargyrum atoms and release the ultraviolet energy, which may be absorbed by the fluorophor and be changed into the visible rays as lighting, to achieve the lighting effects.

ES Lamp：是Energy Saving Fluorescent Lamp的简称，中文名称节能电极并列型照明灯，是世界首发专利的光源产品，在玻璃管内植入电极，阴阳电极加上电压后释放出电子，该电子与水银原子撞击后释放出紫外线能量，被荧光体吸收并将其变换为可视光线而造成发光，以达到照明效果。

The study on the profile distribution and accumulation characteristics of organic carbon and total nitrogen in two typical marsh es in Sanjiang Plain showed that on the sediment profiles of Carex lasiocarpa marsh and Phragmites communis marsh , there existed distinct deposition horizon and illuviation horizon.

研究了三江平原2类典型湿地(毛果苔草沼泽和芦苇沼泽)沉积物剖面有机碳、全氮的分布特征与积累现状。

" Casein colours dry quickly and, they have more body than eggtempera paints, they can be applied with bristle brush es to create impasto textures not unlike those of oils."

酪蛋白颜料干燥较快，具有比蛋彩颜料更高的稠度，可用硬画笔创造出与油画相似的厚涂质感

The ES350 is a humanized sedan which express es pursuit for the perfect balance in the busy world.

ES350是一款'以人为本′的轿车，它体现了一种力求在紧张生活中寻找完美平衡的信念。

He made the accusation in the presence of witness es.

他在有见证人在场的情况下提出了控告。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。