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Because of the complications of abdominal organs injury or retrograde ejaculation after ALIF, and the high risk of nerve injury after PLIF, these two surgeries were reduce to perform in clinic nowadays. While TLIF has be consider to have less risk of injuries of nerve root, cauda equine, dura matar, and less incidence of lumbar unsteadiness and spondylolithesis.

研究背景腰椎椎体间融合术是目前治疗椎间盘源性下腰痛、腰椎滑脱症、腰椎不稳症等原因引起的下腰痛效果较为满意的一种腰椎融合手术方式，其主要分为前路椎体间融合术、后路椎体间融合术以及经关节突入路椎体间融合术。

Which bears about the same relation to stocking -knitting that cobbling does to shoemaking, and is of course both less profitable and less dignified.

这同织袜子不同，就象补鞋底同做鞋有区别，当然也就更没出息，挣不到几文钱。

The retroperatoneal laparoscopic renal cyst decortication treatment for the renal cyst and polycystic kidney is the best method and has many advantages such as less injury,less bleeding,quicker recovery and shorter hospitalization.

腹膜后腹腔镜肾囊肿去顶减压术是治疗单纯性肾囊肿和多囊肾的最好方法，患者创伤小、康复快、住院时间短，且可早期下床活动。

And Scandinavia's egalitarianism might work less well in places with more diverse populations and less competent teachers.

这样，斯堪的纳维亚的"人人平等主义"在面对越来越多不同种族的人群和老师越来越弱的竞争力时，也许不会那么奏效了。

Fluosilicic acid,which is the byproduct from phosphate fertilizer factory,reacts with ammonium hydrocarbonate to obtain ammonium fluosilicate,then reacts with ammonium carbonate to form settled SiO 2,after filtration,water washing,drying and calcining,high purity SiO 2 with less than 10×10 -6 metal impurity and less than 10×10 -9 uranium and thorium respectively is made.

由磷肥厂副产氟硅酸同碳铵反应得氟硅酸铵，再和碳铵反应生成SiO2 沉淀，经过滤、水洗、干燥、煅烧得高纯SiO2 ，其金属杂质总含量小于 10× 10 -6，含放射性元素铀和钍各小于 10× 10 -9，通过实验获得了适宜的工艺条件，反应温度 70℃～ 80℃，反应时间 1 5h～ 2 0h ，配料比n(NH4HCO3 )∶n(NH4 2 SiF6 =4 4。

With less vegetation and fruits to pick and less animals to hunt (caused by the increase of hunters and much sophisticated hunting skills), people gradually started to recognize and domesticate wild plants such as millets which were edible, drought-enduring and which had a short harvesting period. TheYellow River provided irrigation for the originally domesticated plants, which makes it the first region to have original agriculture.

由于可供采集的植物、果实之类减少，可猎取的动物数量由于猎手日增和手段提高也呈减少趋势，就逼使初民逐渐认识和驯化野生植物（如适于食用、耐干旱、生长期短的野生粟类），同时黄河及其支流为灌溉那些初步驯化的作物提供了条件，使黄河流域成为原始农业在中国的最早源地之一。

No.31small watershed based on plant was affected people's interfere more and faced more environment effect. Watershed system instructive intend irrationality, and function misadjust, and health general; 3 No.34 small watershed based on woodland was affected people's interfere less and faced less environment effect.

以耕地为主的小流域31受到人类活动干扰的影响大，面临的外界压力大，在强大的外界压力作用下，流域生态系统的内部结构倾向不合理，功能严重失调，恢复能力差，变化大，目前健康状态一般，但如果不进行科学的利用和保护，土壤肥力将进一步下降，最终将会严重影响国民经济的发展，人民生活水平的提高。

RESULTS: In the verapamil group, the fibroblast were round or oval, and there were tiny cell process, less alpha substance, atrophic and decreased rough endoplasmic reticulum in kytoplasm and abundant vesica. In control group, there were fusiform or polygon fibroblast, and much matrix among cells, abundant rough endoplasmic reticulum and ribosome in cytoplasm and less vesica were found.

结果：维拉帕米组神经瘢痕成纤维细胞呈球形或椭圆形，细胞突起细小，胞间网状物质少，胞浆中粗面内质网萎缩且数量减少，囊泡丰富；对照组成纤维细胞呈梭形或多角形，细胞间基质较多，细胞浆内粗面内质网及核糖体丰富，囊泡少见。

Organizations must now repeatedly manage, renegotiate, and alter the terms of the employment agreement continually to fit changing circumstances (Tichy, 1983; Altman and Post, 1996) and thus may be less willing or less able to fulfill all of their promises.

组织必须一再及时处理，重新协商，并且修改雇用协定的期限连续地适应改变的情况(Tichy，1983；Altman and Post， 1996)和因而较不愿意或较不能履行他们的所有承诺。

The reticulated vessel which has large cavity has thicker wall due to more elastic fibers and more smooth muscles and its endothelium is cuboidal epithelium which has rotundity karyons. But the reticulated vessel which has small cavity has thinner wall due to less elastic fibers and less smooth muscles and its endothelial cells are flat epithelial cells which have long-shuttle-shaped karyons. In some regions, the ducts are very small in diameter and thin of wall, and they become blood sinus in the end.

管腔大者，管壁厚，弹性纤维、平滑肌纤维多，内膜靠腔面内皮细胞多成立方状，细胞核端位近圆形；管腔小者，管壁薄，弹性纤维、平滑肌纤维少，内皮细胞扁平、排列稀疏，胞核长梭形；一些区域管径极小，管壁极薄，成为开放的血窦，只允许一个血细胞通过。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。