无变化的

Express the differences of displacement variation of a mass subjected by a free damped vibration and a forced vibration, separately.

分别叙述一质量受到无阻尼的振动与强制振动时位移变化的不同。

The difference between the value derived by the function and the true value is the influence resulted by human activity.

可以认为在全球变化的气候背景下，人类活动因子是无定河径流演变的主要驱动因子。

Femoral stress has been studied by electrometric experimental stress analysis methods to know about femoral stress value and its distribution case in front and rear of replacement to artificial femoral head.

结果表明：股骨内外侧应力大于前后侧应力；人工股骨头置换术后股骨头近端应力明显下降；在使用骨水泥固定后，股骨上各点应力无大的变化，而当使用带颈领的人工股骨头时，股骨头近端应力下降受到抑制。

Illusionist No-Face, for instance, is a magician who can instantly shift appearances.

我们以"无脸的魔术师"为例子，它是一个可以迅速变化形状的魔术师。

Exact and real-time detection of the instantaneous variable harmonic and reactive current in power system is the premise for compensation of active power filter.

实时、准确地检测出电网中瞬态变化的谐波与无功电流是有源电力滤波器进行精确补偿的前提。

In the presence of nature, a wild delight runs through the man, in spite of real sorrows. Nature says,— he is my creature, and maugre all his impertinent griefs, he shall be glad with me.

不仅阳光和夏天带来欢跃，四季的每一时分都奉献出愉悦；自然变化的每一时晨无不如是。

This method is very much effective used for processing the data series of unequally interval and irregular varying, and is the further expansion of weighted moving average smoothing method.

该方法用于处理非等时间间隔、无变化规律可循的数据序列很有效，是加权移动平均滤波方法的进一步扩展。

Basalt core was unchanged, and feldspar and pyroxene partly steatited in its rind.

玄武岩的核心区矿物基本无变化，外环的长石及辉石发生了皂石化，部分基质绿泥石化。

The major reason of the climate change is the unconstrained emissions of developed countries during the industrialisation process.

气候变化的重要原因是发达国家在工业化过程中无节制的排放。

Wearing the actigraph, I sat before a computer in a small windowless room and took working-memory tests.

戴着活动变化记录仪，我坐在一间无窗的小房间内的一台电脑前，进行工作记忆试验。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐