不变化的

C . The milk is now sour .

这种结构通常表示一种意外的或不愉快的变化或发展，例如

The traditional measurement method keeps the gimbal stable by spring hook, however, it introduces variable outside force and produces errors to the results which cannot be eliminated.

传统的检测方法是通过弹簧挂钩将万向节一端稳定在一个平面内，但对测量引入了外力，而且这种外力是变化的，不能作为系统误差消除。

But also in the growth process, nor is it static, but also has been changing.

而且在生长过程，也不是一成不变的，也是一直在变化的。

The likelihood of a structural change to price iron ore sales based on spot prices rather than annual benchmark settlements comes a year after the launch of the first cash-settled ore swap by Credit Suisse and Deutsche Bank.

瑞士信贷和德意志银行一年前推出了第一份现金结算的铁矿石掉期交易合约，目前，铁矿石定价出现了结构性变化的可能性--即基于现货价格而不是年度基准协议价格。

However, if changing thermoelectric voltages are causing inaccurate results, then the delta method should be used.

然而，当变化的热电动势电压引起不准确的测量结果时，就应当使用Delta法。

They are in trouble, to a great extent, because they failed to adapt to a changing world.

他们的麻烦是因为在很大程度上不能适应不断变化的世界。

The relationship between the error signal and gain parameters of PID controller is nonlinear, and , a normal controlled system＇ s step response figure , under the condition of ideal change of the three PID gain parameters in the different time , PID con troller.

但是，目前使用的PID控制器大多仍是传统的线性PID 控制器，其控制信号是通过将参考输入与被调节量的偏差及其微分、积分进行简单的线性组合来生成的，而且PID控制器的增益参数在系统动态响应过程中是固定不变的，不能反映偏差信号的变化l2j。

In the 1960s and continuing unabated today, another form of transformation began to affect rural America and Canada.

在二十世纪六十年代，乃至热度不减的今天，另外一种变化方式开始影响美国和加拿大的农村。

These changes have come about not because human beings have suddenly and unaccountably improved, but because positive steps were taken to change the law.

这些变化的出现不是因为人突然改善，而是在改变法律上采取了积极的步骤。

The market is unceasingly changes, customer's demand is various.

市场是不断变化的，顾客的需求各不相同。

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