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Abstract: The residue accumulation status of copper in orchard soil where bordeaux mixture was applied for many years, its effects on fruits and intercrop and interplanting of another crop were elaborated.
中文意思:
文摘:阐述了因长期施用波尔多液致使铜在果园土壤中的残留积累状况及其对果园作物生长的影响。


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Abstract: The remaining life of speciment is dependent upon loading history, under two level cyclic loading. 文摘:两级循环加载条件下,材料的剩余寿命强烈地依赖于加载历史。
Abstract: The research of equipment on airplane need ground test equipment which have maturity functions. 文摘:机载电子设备的研制和开发,需要功能完备的地面检测设备。
Abstract: The research of sedimentary facies is an important foundational work for the exploration and evaluation of petroliferous basins. 文摘:沉积相研究是进行含油气盆地勘探、评价的一项重要的基础工作。
Abstract: The research on artificial intelligence and artificial neural networks, which is rising and developing presently, opens up a new way for controling of complex non-linear system. 文摘:目前正在兴起和发展的人工智能及人工神经网络的研究为复杂的非线性系统的控制开辟了一条新路。
Abstract: The research results on hydroseeding, hydroseeder and nationalization of hydroseeding mulching materials have been introduced. The prospect of utilization of the technology in China has been analyzed. 文摘:介绍了水力喷播技术和水力喷播机,以及喷播辅料国产化的试验研究成果,并对水力喷播技术在中国的应用前景做了展望。
Abstract: The residue accumulation status of copper in orchard soil where bordeaux mixture was applied for many years, its effects on fruits and intercrop and interplanting of another crop were elaborated. 文摘:阐述了因长期施用波尔多液致使铜在果园土壤中的残留积累状况及其对果园作物生长的影响。
Abstract: The resource distribution of Aralia elata in northeast China were investigated.By means of the optical microscope,the features of histology and powder of cortex of this plant were first examined.In the cortex,threre are a large number of secreto 文摘:对分布在我国东北地区的药用植物辽东木的资源进行了调查,以光学显微镜对其根皮的组织和粉末进行了观察,其根的皮层较层,并含有大量的树脂道,粉末具有大量的淀粉粒及少量草酸钙结晶.
Abstract: The responses of shaft bow and their relationships with unbalanceresponses and mechanical or electronic run out are analyzed based on the theory of rotor dynamics.The responses of shaft bow are separated from the unbalance responses successfully 文摘:依据转子动力学理论分析了柔性转子弯曲响应的特征,在此基础上讨论了它与不平衡响应及机械与电气跳动量之间的关系,并利用转子在不同起车情况下的振动信息,有效地分离了弯曲响应和不平衡响应,求解出弯曲量与不平衡量的比值.提出了转子在恒定转速下,基于二维全息谱技术的热弯曲故障识别方法.研究结果表明,当弯曲量相位稳定而其幅值变化时,转子响应的二维全息谱初相点的切线是相互平行的,由此可以有效地实现转子热弯曲故障的识别与诊断.
Abstract: The restoration of the riparian vegetation disturbed by human activities is one of the hotspots of watershed ecology.Through interpreting the images of Remote Sensing in 1985 and 1999,the basic information of forest resources of Lushuihe Forest 文摘:本文对两期遥感图像进行解译,并在GIS支持下提取露水河林业局主要河流两岸各缓冲区森林资源信息,经分析得到各类地物在1985年及1999年的变化趋势.结果表明:在河流沿岸对森林的采伐强度1999年较1985年明显减小,整体生态环境较1985年有所改善.在缓冲区1,2,3除中龄针叶林大幅度增加外,其它地物类型面积均减少,由此可以看出,在这三个缓冲区内针叶林得到了较好的恢复.在缓冲区4内,中龄针叶林、成熟针叶林、成熟阔叶林形成一个林龄梯队,有利于森林生态系统的稳定与功能的发挥,十五年间缓冲区4受到的干扰相
Abstract: The results of field experiment of comparison and demonstration in a large area showed that treating seed with imidacloprid and applying it in the late seedling stage and the early field stage can control small brown-back rice planthopper better 文摘:通过田间对比试验和大面积示范应用证明,播种时以吡虫啉拌种,秧田后期、本田前期喷施康福多、扑虱灵,可以较好地控制灰飞虱,从而有效地控制黑条矮缩病的流行。
Abstract: The reverse logistics is one of the contents of the circulatory economy, including rebuilding, refitting and reutilizing the merchandise in the circumfluence. 摘要:逆向物流是对回流中的商品的改造、整修和再利用活动,是循环经济的一个内容。
 
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