丝

Philomela king pandion of athens had two daughters,procne and philomela.when athens was threatened by the wild men,king tereus of thrace came to its help.out of gratitude king pandion offered tereus either of his daughters in marriage and the thracian king chose procne as wife.

菲勒美拉雅典国王潘底翁有两个女儿，普鲁丝妮和菲勒美拉。当雅典受到蛮人的威胁时，色雷斯国王泰诺斯伸出了援助之手。出于感激，国王潘底翁让泰诺斯从自己的女儿中任选一位作他妻子。泰诺斯选择了普鲁丝妮。他们在色雷斯生活了许多年，并且生了一个儿子，名叫意大拉斯。

There are four kind of isoforms of endothelin in human and other mammals named ET-1, ET-2, ET-3 and ET-β, which are slightly different in construction and pharmacological effect. In human beings, ET-1 is the dominative subtypes. ET-1 remains in blood at a low level about 5ng per liter on physical state. It is synthesized, stored, released and metabolized locally. The half-life of ET-1 is about 1 hour. ET-1 is the most potent vasoconstrictive factor till now, and it is more functional in vein than in artery. In vascular bed, there are two kind of ET receptors. Type A mainly located in smooth muscle cells, whereas type B in endothelial cells. The latter can stimulate intimal hyperplasia via a parasecretion way and activate some oncogenes such as c-fos and c-myc and then enhance their expression. These alterations result in constriction of blood vessels, thus the SMC steps into proliferate state from silent state.

人及哺乳动物体内有四种结构及药理学性质略有差异的异物体，分别为ET-1、ET-2、ET-3、ET-β，而在人主要是ET-1，在生理条件下，ET-1在血浆中含量较低，约为5ng〓，故ET-1不是一个循环激素，而是局部合成释放，局部起作用的活性物质，半衰期约1小时，ET-1是目前已知的最强的血管收缩剂，对静脉的作用比动脉强，在血管床，ET受体有A、B两型，A型主要分布在平滑肌细胞，B型主要分布在内皮细胞，它可以通过旁分泌途径刺激内膜增生，具有有丝分裂原效应，可以激活某些癌基因如C-fos、C-myc使其表达增强引起血管收缩，使静止期SMC进入增殖期，还可以通过信号传导途径，与bFGF、GTF-β、PDGF等生长因子协同作用，起共有丝分裂原作用。

Methods 63 patients were divided into 2 groups randomly, one group treated with Sibai whitening ointment associated with ultrasonic phoresis called treatment group, another group treated with sibai whitening ointment only as control group.

采用随机、平行对照方法，治疗组32例，使用丝白祛斑软膏联合超声波导入；对照组31例，使用丝白祛斑软膏外涂。

Erve growth factor combined with its receptor, activated Ras - MAP kinase , mitogen - activated protein kinase kinase is the important regulating factor that make IkB kinase, IKK, phosphated, IkB kinase make the IκBα:(the subunit of NF -κB ) phosphated, the phosphated IkBα degraded, and p65 - p50 heterodimer can be formed, then the heterodimer translocated to nucleus and combined with the promoter domain or other consensus sequence.

GF与其受体相结合，最后可以激活Ras-有丝分裂激活的蛋白激酶途径，有丝分裂激活的蛋白酶激酶(MEKK1)是IγB激酶发生磷酸化的重要调节因子，IKK使NF-κB的亚单位IKBα发生磷酸化，磷酸化的IKBα发生降解，而最后留下p65-p50二聚体，该二聚体然后转位到细胞核内与κB基因的增强子区域或与他的顺式作用序列结合。

The high plasmodesmal SEL in some tissues and the change of plasmodesmal SEL during development might play an important role in the regulation of development.

某些组织中胞间连丝很高的SEL和发育过程胞间连丝SEL的变化可能在植物发育调控中有重要作用。

However, the selenium can relieve the damage to a certain limitation. During the cultivation of Potamogeton maackianus of rich selenium, the situation of heavy metal pollution should be checked in time so as to avoid the damage on fish caused by the heavy metals enriched in the bait.

然而，Se缓解Cd对黄丝草的毒害是有一定限度的，在富Se黄丝草的繁殖过程中，需及时检查重金属污染情况，防止重金属在饵料中的富集，以免造成对渔业的危害。

This article analysed the broken filament phenomenon appearing in the POY production process.

针对POY丝生产过程中出现的毛丝现象作了探索，通过对卷绕成形全过程的仔细观察研究。

According to practical experience,the paper analyzed the factors to cause end breakage of small yarn package at the first floor of polyester POY post processing,put forward the control methods,which can improve production efficiency and quality.

根据生产实践的经验，分析造成涤纶POY后加工底层小卷丝断头的各种原因，提出减少POY后加工底层小卷丝断头的控制方法，从而提高后加工的生产效率和产品的质量。

The technology for spinning POY on FDY device was introduced. The effects of the method and position of bundling oiling and the wrap way of yarns around GR 1 and GR 2 on the spinnability and the quality of POY were also discussed.

介绍了在FDY设备上纺制POY的生产技术，讨论了丝束集束上油的形式、丝束在两辊上的缠绕形式及纺丝速度对POY可纺性及质量的影响。

POY and FDY oiling agent s on wetting, friction, heat-resisting, attrition-resisting properties, etc.

比较了国产和进口的适用于涤纶高速纺丝的预取向丝油剂及一步法牵伸丝油剂的润湿、摩擦、耐热、耐磨等性能，经实际生产应用证明二者的可纺性、上浆性、染色率基本相同。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。