【摘 要】
：
4月份,全国工业生产继续保持快速增长,国内橡胶市场消费需求旺盛态势依旧;国内天然橡胶海南、云南主产区陆续开割,新胶资源陆续上市,加上进口持续上升,新增资源增长继续加快,
论文部分内容阅读
4月份,全国工业生产继续保持快速增长,国内橡胶市场消费需求旺盛态势依旧;国内天然橡胶海南、云南主产区陆续开割,新胶资源陆续上市,加上进口持续上升,新增资源增长继续加快,市场供给偏紧的矛盾正在逐渐缓解,国内天然橡胶市场价格小
In April, the national industrial production continued its rapid growth, and the domestic rubber market still enjoyed strong consumer demand. The domestic natural rubber Hainan and Yunnan main producing areas opened one after another and the new rubber resources went on the market one after another, along with the continuous rise in imports and the continued growth of new resources Accelerate the contradiction of tight market supply is gradually eased, the domestic market price of natural rubber small
其他文献
The investigation of supporting pressure is of great significance to the design of underground structures. Based on the kinematical approach of limit analysis,
缺血再灌注损伤 (ischemia- reperfusion injury,IRI)在心、肝、肾、肠等多种器官均可发生 ,并导致再灌注器官机能、形态及代谢的异常改变 [1] 。 IRI机制及其防治措施研究在
柄海鞘 (Styela clava Herdman)属脊索动物尾索亚门 ,为温水性种 ,多产于浅海 ,成体多固着在港湾、码头、船壳、浮物、岩石、砾石、海藻、贝壳等上 ,生长繁殖非常迅速。柄海
荠菜(Capsella bursa-pastoris L.)十字花科,一年生或二年生草本植物.银荇菜(Amaranthus spinosus L.)苋科,一年生草本植物.以上两种野菜广泛分布于华北各地,是人们普遍喜爱
成功、优质的核磁共振成像(MRI)在很大程度上依赖于成像设备本身严格的质量保证,以确保各项指标和参数都符合预订的技术要求,维持临床诊断的标准和持续改善提供给病人的影像
1991年在本刊复刊十周年之际,曾对1981年四季度复刊至1990年末,十年来的论著进行过营养学论著的综述[1].现将1991年至2000年在本刊发表的900余篇学术论文再进行综述.其目的是
When mining metal mines with steep structure planes by the caving method, there is a mechanical model in which the horizontal stress on the rock mass is simplif
写作新闻,应该说是一门很深的学问.现在国外提倡故事化新闻写作,本文想谈些读书思考的体会,供大家参考--