elv

Civil Airport ELV Information System Based on Middleware Service Layer

基于信息发布服务中间层的民航机场弱电信息系统

Research of the Measurement Method of 4 DeleteriOUS Substances in ELV Directives

ELV指令中四种有害物质检测方法的研究

Performance evaluation technique research of enterprises of ELV is at a low level , and practical application study combined with quantitative study is rarely .

我国在报废汽车回收企业绩效评价技术方面的研究尚处于起步阶段，在定量研究结合实际应用方面的研究极少，有必要进行深入的研究。

Extra-low voltage ( ELV ) & limit values

GB/T3805-1993特低电压（ELV）限值

ELV recycling is not only related to the transportation security , but also involves the environmental protection and efficient use of resources and so on .

报废汽车回收利用不但关系到交通运输安全，也涉及环境保护和资源有效利用等方面。

Conclusion : Expression of caspase-3 protein increased in germ cells of rats with ELV , which may be one of the molecular mechanisms related to excessive testicular germ cell apoptosis .

结论：精索静脉曲张可能是大鼠生精细胞caspase-3表达增加且生精细胞凋亡增多的机制之一。

Objective : To explore the relationship between the expression of caspase-3 in testicular germ cells of rats with experimental left varicocele ( ELV ) and apoptosis of germ cells .

目的：探讨caspase-3在精索静脉曲张大鼠生精细胞中的表达及其与生精细胞凋亡的关系。

Objective : To investigate the effects of experimental left varicocele ( ELV ) on the cystatin - related epididymal spermatogenic ( CRES ) protein in the testis and epididymis of adolescent rats .

目的：研究青春期大鼠实验性左侧精索静脉曲张（ELV）对睾丸和附睾中胱蛋白酶抑制剂相关的附睾精子发生（CRES）蛋白表达的影响，探索精索静脉曲张导致不育的机制。

European Union End-of-life-Vehicles ( ELV ) Directives specified a limit of 2 g of hexavalent chromium per vehicle entering the European market after July 1 2007 . This conversion coating system will exceed these specifications .

欧盟的End-of-Life-Vehicles（ELV）Directives中规定，2007年7月1日以后每种进入欧洲市场的产品中，六价铬的含量不能超过2克。转化膜体系也不能超出这些规定。

Methods Establishing experimental left varicocele ( ELV ) animal model , 4 and 8 weeks after the surgery , the changes of the expression of androgen receptor in the epididymis were studied using methods of immunohistochemistry and western blots .

方法建立青春期大鼠ELV模型，通过免疫组化及蛋白印迹方法，研究ELV4周组、8周组与正常对照组附睾雄激素受体表达之间的差异。

With the shortage of resources and environmental pollution becoming increasingly serious , developing circular economy and carrying out reusing of resources have been widely accepted , the importance and the effectiveness of ELV reverse logistics have been also concerned by the society .

随着资源短缺与环境恶化问题日益突出，发展循环经济、开展资源再生利用被广泛接受，报废汽车逆向物流的重要性及有效性也受到社会关注，因此本文提出报废汽车逆向物流网络研究。