恒定的

The presence of fish will not have influence on the concentration of CPs.

实验发现：24h换一次水，能充分保证CPs实验水的浓度恒定，鱼的存在并不影响实验水的浓度。

It is major work to present the tectonic time duration system of the strain rate method, which is an original exploration.(1) Principle: Its basis is the stress and strain rule depending on strain capacity in steady-state stress field, but not the radioactive decay law depending on radiation dose in invariable radiation field. This can be simplified as a process of differential stress-strain rate-strain capacity-time duration calculating.

工作重点是梳理出应变速率法构造时限定年系统，属原创性探索：①原理：不是基于放射性核素衰变规律，而是基于应力应变规律；不取决于恒定辐射场的辐射剂量，而取决于稳态应变场的应变量，可简括为差异应力-应变速率-应变值量-计算时限的求索过程。

Moreover, Democritus argued that the quantity of matter is always constant, leading to proposals for both the indestructibility of matter and its conservation.

另外，他还提出，物质的数量总是恒定不变的，所以产生了物质永不灭和物质守恒的说法。

They are produced through the advanced technology of wet process and wed surface compound and the process of drying in static station and constant temperature for multi-sections and secondary depolymerization.

他们生产的，通过先进技术的湿法工艺和周三表面复合和过程，在干燥的静态站及温度恒定为多节和中学聚。

The new threshold function overcomes the shortcomings of the hard threshold with discontinuous function and solves the problem of the permanent bias in soft threshold function,and it is more flexible than the soft threshold and hard threshold function.

新阈值函数克服了传统硬阈值函数不连续的缺点，解决了软阈值函数中存在的恒定偏差，并且具有软硬阈值函数不可比拟的灵活性。

The phylogenetic tree of fish IgH conserved region contains two major branches of teleost and elasmobranch, and snakehead IgH is most closely related to pufferfish. The phylogenetic tree of IgL conserved region shows three major branches, and snakehead IgL locate as a branch of IgL1A.

根据IgH和IgL恒定区氨基酸序列构建系统进化树，鱼类IgH形成硬骨鱼和软骨鱼两大分支，其中乌鳢IgH与河豚IgH的亲缘关系较近；硬骨鱼IgL系统树显示3个主要的分支：L1、L2和L3，乌鳢IgL位于L1分支的L1 A亚类。

We discuss the relation of the expanding coefficient and the outfield when the order parameter is invariant, and we get a result similar to that of measuring the Frank elastic constant by outfield, the relation of the two kinds of the expanding coefficients is also gained indirectely.

Landau-P.G.de Gennes自由能密度表达式，并且讨论了当序参数恒定时在外场作用下展开系数与外场的关系，得到了与用外场测Frank 弹性常数相似的结果，间接得到了两种展开系数之间的关系，也为确定L。

Kosta Ventilation Control System Fume Hood by direct measurement of the surface wind speed and constant surface wind speed to adjust the exhaust Fume Hood quantity of emissions so as to achieve the best effect.

Kosta通风控制系统通过直接测量通风柜的面风速并恒定面风速来调整通风柜的排风量，从而达到最佳的排放效果。

Each cycle includes anagen, catagen, telogen and exogen which requires the replacement of died cells with new cells. During the self-renewing of tissues, stem cell must keep proliferating and differentiating to maintain the amount of stem cells and to generate differentiated cells in order to maintain the the number and the functions of the cells.

在组织更新过程中，需要干细胞的不断增殖和分化，维持干细胞群体的大小，分化出子细胞，保持总的细胞群体的恒定和各种生理功能。

A power ultrasonic supply ,which can realize zero phase difference frequency tracing and fixedness of output power,is presented in this paper.

本文介绍了一种具有无相差频率自动跟踪和输出功率恒定功能的功率超声电源，此电源采用集成锁相环来实现无相差自动频率跟踪，采用 PWM方式控制 BUCK电路的斩波，达到恒功率及功率可调的目的。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新