恒定

Variable decelerations are characterized by the variable onset of abrupt slowing of the FHR in association with uterine contractions.

变异减速的特点是与宫缩关系不是恒定的突然发生的胎心率减慢。

Variable decelerations are characterized by the variable onsetof abrupt slowing of the FHR in association with uterinecontractions.

变异减速的特点是与宫缩关系不是恒定的突然发生的胎心率减慢。

VS crystallization, which has little effect on the elongation growth, takes place on side faces of the whiskers and consequently makes the whiskers radius increase.

从理论上可推导：晶须按 VS生长时，生长速度受原子沿晶须表面向晶须顶端的扩散控制，其生长速度恒定不变；按VLS生长时，固相与液相之间的 Gibbs Thom

Under the condition of constant temperature gradient of extraction fractionating column of said separation apparatus a linear pressure boosting mode is used, so that the petroleum heavy oil, in particular petroleum residual oil can be cut into ten-odd or more narrow distillations according to the molecular weights.

在分离装置萃取分馏柱恒定温度梯度下，采用线性升压方式，可以将石油重质油，特别是石油渣油大致按分子量的大小切割成十几个或甚至更多个窄馏分。具有分离效果好，过程简单，靠近生产实际的特点；对生产实际有指导作用。

In conclusion, this system is a power system of constant voltage and current based on constant RMS.

综合以上考虑，本文提出了一种基于有效值恒定的交变恒压和恒流电源控制系统。

The fulllength heparanase gene is isolated. The functional heparanase is expressed within COS7 and CHO cells and few heparanse is secreted into medium. The positive CHO cells expressing active heparanase is screened, which will help explore its function and screen its antibody and antagonists from a variety of sources.

本研究分离出人HPA编码基因全序列；在真核细胞内成功表达出有活性的人HPA，发现此酶在COS7和CHO细胞中表达在细胞内，很少分泌到细胞外；筛选出其恒定表达细胞株，为进一步研究HPA结构功能、开发其抗体及抑制剂提供了有力的工具。

The fulllength heparanase gene is isolated. The functional heparanase is expressed within COS7 and CHO cells and few heparanse is secreted into medium. The positive CHO cells expressing active heparanase is screened, which will help explore its function and screen its antibody and antagonists from a variety of sources.

本分离出人HPA编码基因全序列；在真核细胞内成功表达出有活性的人HPA，发现此酶在COS7和CHO细胞中表达在细胞内，很少分泌到细胞外；筛选出其恒定表达细胞株，为进一步研究HPA结构功能、开发其抗体及抑制剂提供了有力的工具。

After reviewing the related research work carried out by earlier researchers, a 1-D unsteady flow and sediment model is used as a tool to study the influence of time distortion upon physical models. It is aimed to get a fullscale and quantitative insight into this problem, especially the dynamic processes of flow and sediment transport.

本文回顾了前人对物理模型时间变态问题的研究，在此基础上，以一维不恒定流泥沙数学模型为工具，对实体模型试验中时间变态带来的影响进行了数值模拟，力图对时间变态带来的模拟结果的偏差有个全面和定量的认识。

Methods The Parkinson's disease model was established by administration of MPTP to C57BL mice. In situ hybridisation was used to observe the levels of GDNF.

采用C57BL小鼠MPTP法建立帕金森病模型，通过原位杂交方法观察GDNF表达，对检测部位恒定视野内GDNF阳性细胞进行灰度扫描。

Parathyroid hormone as one of the most important hormones that could regulate bone metabolism, is synthesized and secreted by the principal cell of parathyroid gland.

甲状旁腺激素是由甲状旁腺主细胞合成和分泌的一种单链多肽激素，是人体内维持血钙恒定的主要激素。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。