【摘 要】
:
本刊经常收到有关设备、管道、机泵、阀门及设计选型、选材、采购价格及供需信息等方面的咨询来信,为了互通信息,加强联系,对带有普遍性、代表性的问题,本刊选择刊登有关内容
论文部分内容阅读
本刊经常收到有关设备、管道、机泵、阀门及设计选型、选材、采购价格及供需信息等方面的咨询来信,为了互通信息,加强联系,对带有普遍性、代表性的问题,本刊选择刊登有关内容供大家参考。本刊同时欢迎广大读者来稿参与“问答咨询”园地。
This journal often receives letters of inquiry about equipment, pipelines, pumps, valves and design selection, material selection, purchase price and supply and demand information. In order to exchange information and strengthen contacts, Articles selected to publish the contents for your reference. Articles at the same time welcome readers contributions to participate in “Q & A consultation” garden.
其他文献
陕西机床厂于最近研制成功一种3M2180特大型轴承套圈磨床。本机床适用于成批生产加工大规格轴承的内圈滚道和套圈外圆,最大磨削直径800mm,最大磨削长度200mm,最大磨削工件外
An efficient angular momentum method is presented and used to derive analytic expressions for the vibration-rotational kinetic energy operator of polyatomic mol
Asian Pacific Journal of Tropical Biomedicine(APJTB)aims to set up and provide an international academic communication platform for physicians,medical scientist
请下载后查看,本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
Study on formation of gouging-pits in Mn,Cr, steel under impact abrasive wear condition was conducted by following the theories of elastic crash and contact, th
1INTRODUCTIONTherareearthcompoundsRET2Si2,whereREisarareearthelementandTisatransitionmetalelement,havebeenstudiedwithgreatin?..
1INTRODUCTIONTherareearthcompoundsRET2Si2, whereREisarareearthelementandTisatransitionmetalelement, havebeenstudiedwithgreatin
胡子诚同志,1957年毕业于南京农学院,到宁夏从事教学。科研工作41年,现任宁夏农学院农学系遗传育种教研室主任、教授。胡子诚同志长期主持区级重点科研课题“水稻新品种选育”,共
12月份召开的中央经济工作会议和全国财政工作会议,对2013年财政工作提出了总体要求:坚持稳中求进的工作总基调,继续实施积极的财政政策,深化财税制度改革,推动国民收入分配
适逢县级领导“三讲”教育学习期间,按规定每周星期四晚上到星期天上午全部集中学习,县级领导只剩四天时间处理分管的各项业务工作。记者专程赶往福鼎市,于星期四上午见缝插针采
在以日本车为主角的东京车展上,德国奔驰毫不示弱,依然亮出一款最新概念车F500,演出一场强龙要压地头蛇的好戏,也显示出了大公司的派头.
At the Tokyo Motor Show, which is