不变

What keeps Darwinian evolution intact is that this only happens when there is something wrong.

达尔文进化论之所以经久不变，是因为没有什么经证明是错误的。

This article applies the simplified differential coefficient equation on rising-sinking and swinging movement of high-speed sliding body model in the static water. The paper presents a method of theoretical prediction for the movement of high-speed planning hulls with a constant dead rise angle in regular waves.

应用简化了的高速滑行体模型在静水中滑行的升沉和纵摇运动的微分方程，提供了对不变侧缘角的高速滑行体在规则波浪中运动的动力分析方法。

In theory, at least, the dead load on a structure is supposed to remain constant.

至少从理论上说，死亡的负载结构理应保持不变。

Speaking at the end of a decimal fraction of the size of the change to remove the zero point of this knowledge, do the exercises when I found a child in the 2 to 200 after the zero is also removed 啦, how do I let him remember it, I'll seize this details.

在讲小数末尾去掉零小数的大小不变这个知识点时，做练习时我发现一个孩子把200中的2 后面的零也去掉啦，我怎么让他记住呢，我就抓住这个细节。

The key features of the International System are decimalization, a system of prefixes, and a standard defined in terms of an invariable physical measure.

国际制度的主要特点是采用了十进制法、字首体系、以不变的物理度量方式解释的标准。

Decimalization, a system of prefixes, and a standard defined interms of an invariable physical measure.

国际制度的主要特点是采用了十进制法、字首体系、以不变的物理度量方式解释的标准。

This paper analyzes the frequency characteristics of comb filter and the principle of using comb filter as decimation filter.

文章分析了梳状滤波器的频率特性及其作为抽取滤波器的原理，特别指出了此种滤波器具有对Σ－△调制器成型的量化噪声的频谱形状保持不变的特性。

This paper, by conjugating with the new reliability-preserving reduction we present and applying pivotal decomposition theorem ...

本文通过结合新提出的几个可靠性不变简化（Reliability－PreservingReducation）和对某些结点应用Pivotal分解定理，提出一个计算一般RBN的K-终点可靠度的有效算法。

The IOP of 20 glaucomatous eyes were taken by Schiotz tonometry before and after hypoxia 15 minutes at 5000 m in decompression chamber, 40% increased, 30% decreased, 30% unchanged.

低压舱上升5000米缺氧15分钟测量眼内压与上升前对照(20只眼)，40％增高，30％降低，30％不变。

Income will decrease proportionally to the volume change, but other commercial terms and conditions will remain unchanged.

其收益会因总量的变化按比例的减少，但其它的商业条款保持不变。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。