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Abstract: Profit estimation for the mechanization in agricultural indust ry is useful to understand the development level, potential, trend of agricult ural mec hanization for government decision making and it is also an answer to how to est imate the sin
中文意思:
文摘:测算农业机械化对农业生产的贡献份额,实践上有助于从总体上把握农业机械化的发展水平、发展潜力和趋势,对农业机械化事业的决策具有重要的参考价值;理论上研究产业系统单因素的贡献率具有学术意义。


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Abstract: Problems caused in designing and management including configuring regulating devices, deciding spaces of the last pipelines, and working-out irrigation scheme in reason using drip irrigation in green houses and in covered lands are raising in re 文摘:近几年来温室、大棚种植蔬菜采用滴灌技术的越来越多,但有些工程无论设计上、管理上都存在一些问题,包括调压设备的合理配置,按土壤、作物、灌水器及滴灌总水量合理确定毛管(或滴灌带)的间距,以及按大棚蔬菜的耗水特性合理确定灌溉制度等,上述各项确定的不合理,不但直接影响效益,严重时可导致工程失败,值得重视。
Abstract: Problems of water resource limit the agricultura l developmentand econ omical development of Guizhou Karst Region. 文摘:水资源问题制约了贵州岩溶地区农业和地区经济的发展。
Abstract: Proceed in start from position of ecological constraction and agricultural sustainable development strategy of Ningxia part in Loess Plateau, the article discusses existing problems and harnessing experiences of Ningxia ecological environment an 文摘:从黄土高原宁夏部分生态建设与农业可持续发展的战略地位出发,阐述了宁夏生态环境存在的问题与治理经验,并提出了如何改善宁夏生态环境、进行保护性建设的一些可行性建议。
Abstract: Processes of blackening of iron and steel at room temperature have been extensively used for their peculiar advantages. 文摘:钢铁常温发黑工艺由于其独特的优点而得到了广泛应用。
Abstract: Profit Portion estimation for the mechanization in plant produ cts ind ustry is useful to understand the development level, potential, trend of agricul tural mechanization for government decision making and it is also an answer to h ow to estima 文摘:测算农业机械化对农业生产的贡献率,实践上有助于从总体上把握农业机械化的发展水平、发展潜力和趋势,对农业机械化事业的决策具有重要的参考价值;理论上研究产业系统单因素的贡献率具有学术意义。
Abstract: Profit estimation for the mechanization in agricultural indust ry is useful to understand the development level, potential, trend of agricult ural mec hanization for government decision making and it is also an answer to how to est imate the sin 文摘:测算农业机械化对农业生产的贡献份额,实践上有助于从总体上把握农业机械化的发展水平、发展潜力和趋势,对农业机械化事业的决策具有重要的参考价值;理论上研究产业系统单因素的贡献率具有学术意义。
Abstract: Progress in recent years on the preparation and application of N-acylamino acids surfactants,especially the derivatives of N-acylsarcosinates have been reviewed with over thirty references and the perspective trend have been predicted.The exploi 文摘:本文综合评述和介绍了N-酰基氨基酸系列表面活性剂的合成及应用(特别在农业、生物化学和药物制造领域的应用)的一些近年来的研究新进展,指出了进一步的研究方向,并报道了我公司开发此类产品的情况。
Abstract: Properties of sixteen hydrogen storage battery which includes hydrogen storage capacity,cicyle life,macrocurrent charge-discharge,self-discharge are evaluted withgrey cluster analysis.After clustering performance is ascertained according to four 文摘:用灰色聚类分析对正交试验的16个贮氢电池性能、放电流量、循环寿命、大电流充放电、自放电等进行评定,按4个灰类归纳后判断聚类性能好坏,聚类结果与产品实际性能完全吻合。
Abstract: Public law lies in the public right relationship and private law lies in the p rivate right relationship. 文摘:因公共利益而发生的社会关系属公权关系,因个人利益而发生的关系属私权关系。
Abstract: Purpose:To analyze the diagnosis and treatment of primary ureteral cancer.Methods:33 cases were reviewed. 文摘:目的:提高原发性输尿管恶性肿瘤的诊治水平。
Abstract: Purpose:To explore the risk factors for nosocomial infection of urological surgical department.Method:2 976 cases of urological surgical patients was investigated retrospectively for the nosocomial infective prevalence in urological surgical dep 文摘:目的:探讨泌尿外科医院感染的危险因素.方法:回顾性调查1996年4月~1999年4月间我院泌尿外科手术患者2976例的医院感染情况.结果:泌尿外科医院感染率为4.87%,其中男性占73.1%,女性占26.9%;感染部位依次为下呼吸道、手术伤口、泌尿道、胃肠道、上呼吸道、皮肤软组织;Ⅰ类切口术后感染率为4.4%,Ⅱ类切口术后感染率为10.4%,Ⅲ类切口术后感染率为13.6%;动脉插管感染率为27.6%,静脉插管感染率为25.5%,泌尿道插管感染率为30.3%,呼吸道感染率为20.8%,全麻感染率为42
 
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