微系统

In later period, NSCs in the brain parenchyma are significantly reduced, and gradually migrates into the choroids plexus of the lateral ventricle and capillary of brain surface, which are digested by endothelial phagocytes.

移植后期脑实质内存活的神经干细胞明显减少，大量迁移到侧脑室脉络丛和脑表面微血管内，被内皮吞噬系统消化。关键词：人胚神经干细胞；脑梗死；细胞分化；迁移

When the self-etched adhesives (Contax, Clearfil TRI-S Bond) were used for the surface treatment of sclerotic dentin, the results of thermal circlings showed that, for Contax, 5,000 times thermal circlings did not weakened the bond strength, while the bond strength after 10,000 times thermal circlings significantly lower than that before circling; for Clearfil TRI-S Bond, 5,000 times thermal circlings significantly weakened the bond strength, while 10,000 times thermal circlings weakened it further.

选择自酸蚀系统粘接剂Contax和Clearfil TRI-S Bond粘接非龋性硬化牙本质，分别测量冷热循环0次，5000次及10000次时的微拉伸粘接强度，结果显示：Contax粘接剂冷热循环5000次后粘接强度无明显下降，而循环10000次后粘接强度明显下降；Clearfil TRI-S Bond粘接冷热循环5000次后粘接强度明显下降，循环10000次后粘接强度进一步下降。

When wild-type mice that are able to generate ceramide were irradiated, the death of endothelial cells in the microvasculature preceded that of epithelial stem cells in the crypts.

而产生神经酰胺的野生型老鼠受照射时，微脉管系统内皮细胞会先于肠腔的上皮细胞死亡。

At the same time, optical channel drop filters, switches, modulators and optical delayers based on optical microcavities have attracted many interests and show their excellent properties in the WDM system.

同时基于光学微腔的光学滤波器、光开光、光调制器和光延迟器等光电子器件在波分复用系统中也得到广泛关注并体现出优异的特性。

Helicobacter pylori infection causes the defect of mismatch repair in eucaryotes, and microsatellite instability in gastric epithelial cells, which increases the spontaneous mutation of relative genes, and finally results in the susceptibility to tumors in human bodies.

H pylori 感染导致了真核细胞错配修复(mismatch repair， MMR)系统的缺陷，在胃上皮细胞中引起微卫星不稳定(micrsatellite instable， MSI)，使相关基因自发突变率增加，最终可导致机体对肿瘤的易感。

The aircraft used high-rate optical measuring system, equipped with a rotary encoder of the eyepiece micrometer will further enhance the process of measuring the degree of automation.

数显显微硬度计采用高倍率光学测量系统，装有旋转编码器的测微目镜可进一步提升测量过程自动化的程度。

Even so, loans to the poor have existed for thousands of years. The formalised system of small borrowing that Mr Yunus pushed in Bangladesh beginning in the mid-1970s was being tried in bits and pieces around the world at the same time, and earlier as well.

可是，向穷人贷款已经存在了成千上万年了。20世纪70年代，当尤努斯先生开始在孟加拉推行模式化的微贷款系统的时候，在全世界各地同时也在零零散散地尝试着，早些时候也是这样的。

The development of temperature data acquisition system based on virtual instrumentation is presented, which was applied to a high-precision gas microflow meter.

采用虚拟仪器技术开发了一个温度的数据采集系统，并在高精度气体微流量计中得到的应用。

The key technology parameter for industrial production is proposed through systemic experiment research and applied to the practical production, to meet the demands of economic and social development on the pipeline steel for transporting petroleum and natural gas and medium steel plate for building giant ship.

本研究工作正是在这种背景下展开的，即以酒钢&十五&规划中的可用于直缝埋弧焊大口径的管线钢开发和用于大型船板建造的微合金化高强度中厚板质量提高为对象，基于酒钢先进的中厚板生产装备，通过实验室系统研究，提出工业生产的关键技术并推广到实际生产过程，满足我国国民经济和社会发展对石油、天然气输送用管线钢和大型船板建造用中厚钢板的需求，为酒钢的可持续发展开辟一条途径。

The review also pays close attention to more recent efforts: utilization of such devices in pressure-gain combustors, ultra-micro gas turbines, and water refrigeration systems, highlighting possible further efforts on this topic.

本文还特别关注了近期的研究情况，例如波转子在压力增益燃烧器、超微燃气涡轮、水循环冷却系统等领域的应用。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。