【摘 要】
：
According to statistics up to May, nearly 20zinc smelters in China closed by the end ofMarch this year as a result of depressed zincprices and shortages of raw
【出 处】
：
China Nonferrous Metals Monthly
论文部分内容阅读
According to statistics up to May, nearly 20zinc smelters in China closed by the end ofMarch this year as a result of depressed zincprices and shortages of raw materials supply.These unlucky dogs are mainly located in thefollowing provinces: Guizhou (6 smelters),Yunnan (3 smelters), Sichuan (3 smelters) andGansu (3 smelters). According to preliminarystatistics, the above smelters have onlyproduced 6,300 tons of refined zinc in the firstquarter this year, a reduction of 16,300 tons as
According to statistics up to May, nearly 20zinc smelters in China closed by the end ofMarch this year as a result of depressed zincprices and shortages of raw materials supply.These unlucky dogs are mainly located in thefollowing provinces: Guizhou (6 smelters), Yunnan ( 3 smelters), Sichuan (3 smelters) and Gansu (3 smelters). According to preliminary statistics, the above smelters have only produced 6,300 tons of refined zinc in the firstquarter this year, a reduction of 16,300 tons as
其他文献
机车轴瓦用于机车车辆的轮对轴箱装置内,它承受车辆的自重和载重。其工作特点是:负荷大、振动激烈、转速低。目前,全国有20多万辆机车使用这种轴瓦(每辆有16块)。在各种不同
本册教材是供三年级第二学期使用的。因本册教材与三年级上册在结构、编排特点方面基本相同,现对本册教材作简要介绍如下。一、教材的基本结构本册共有课文32篇,其中精读课文
丰子恺先生是一代漫画大师,他在艺术上有很高的造诣。可你知道丰子恺先生的故居吗?告诉你,它就是我们桐乡市石门镇的“缘缘堂”!说起“缘缘堂”,你可能会问:“哎,为什么叫‘
This paper describes a mathematical model and an algorithm which can be used for simulation of in-terlinked column systems consisting of liquid-liquid extracti
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.
引言Elektromark为西德西南地区一个具有约130万千瓦装机功率的地区性供电企业。隶属于该企业的埃尔弗林发电厂的第一台发电设备是于1911年建造的。采用液态除渣炉膛的新型3
今天真的不想写作文了,理由如下:1今天我感冒了,病毒与白细胞的战争,以及没有停过的鼻涕,让我无法静心构思作文,所以,就不写作文了。2今天作业太多太多,像一座小山似的,我写
最近,由中国建筑科学研究院牵头负责,完成了对《轻集料及其试验方法第1部分:轻集料》GB/T17431.1-1998和《轻集料及其试验方法第2部分:轻集料试验方法》GB/T17431.2-1998的修
《全日制义务教育科学(3～6年级)课程标准》(实验稿)实施建议的教学建议中提出:“‘用教材教’而不是‘教教材’”。它不仅仅是对教材使用方式的转变,更是一种教学理念的深刻变
中牟县水资源紧缺,农业灌溉耗水量大,发展高效节水灌溉已尤为迫切。全县规划发展高效节水灌溉面积8000 hm2,通过对其经济效益、社会效益、环境效益进行分析,并结合国民经济评