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- R15 strain screened from the root soil of Chinese cabbage. R15菌株是从大白菜植株根际土壤分离得到,其代谢产生的抗菌物质对多种植物病原真菌有很强的抑制作用。
- The structure and properties of PVC/CPE/POE composite system were studied. 研究了氯化聚乙烯 (CPE)增容PVC/POE热塑性弹性体的结构与性能。
- The principle of micron-nano-sized particles composite system was introduced. 介绍了微纳米颗粒复合化系统的工作原理。
- A rhizosphere actinomycete (Z01) was isolated from soybean root soil in Heilongjiang province, PRC. 根际链霉菌Z01分离自黑龙江的大豆根际土壤.
- The region mainly by clayey sand soil and sandy soil composition. 区域内土质主要由粘质砂土和砂质土壤构成。
- The light power of the composite system is equal to the ratio of the two single light power's. 组合系统的光力则为两个单个光力之比。
- The composite systems composed of interconnected similar subsystems still possess certain similar structure. 由这类控制系统互联而成的组合系统仍具有某种相似结构。
- Switched circulant composite systems possess a wide background in practice, such as "hypercycles" in biology. 摘要切换循环组合系统具有广泛的实际背景，生物学中的“超循环”是其中之一。
- The surface of root soil was markedly more favorable to microbes and enzyme in every layer of bio-salver,with quantitative of soil microbes in the order of bacteria,actinomycete a... 而对土壤蛋白酶和脲酶活性的研究发现根际酶活性明显高于非根际酶活性。
- The insulation layer, artificial debond layer and propellant grain in solid rocket motor chamber (SRM) are all polymer composite systems. 固体火箭发动机燃烧室内绝热层、人工脱黏层及推进剂药柱,均为高分子材料复合体系。
- The microcosmic structures of two composite systems were characterized by SEM,then two kinds of toughening mechanisms were discussed. 通过扫描电镜对两个体系的复合物进行表征,对两种不同的增韧机理进行讨论。
- Representative oily soil compositions are more easily mede up from pure chem ical ingredients. 有代表性的油质污垢，则比较容易用纯化学品成分配制。
- Besides, a method for simplifying and reducing the order of an extended circulant composite system is also given. 此外，拟循环组合系统，一种扩展的循环组合系统，也作为本文研究的对象，给出这种组合系统的简化降阶方法。
- Finally, the simulation of switched circulant composite system verifies main results. 最后，针对切换循环组合系统的仿真算例验证了文中的主要结果。
- Representative oily soil compositions are more easily made up from pure chemical ingredients. 有代表性的油质污垢,则比较容易用纯化学品成分配制。
- Liu Yunkang,Wu Ci-qian,Boundary value problems for composite systems of second order PDEs,J.Partial Ditterential Equation. 刘运康、吴兹潜;一类具有非负特征的双曲型偏微分方程组的边值问题;中山大学学报(自然科学)论丛;13(1988).
- The soil composition of vineyards is one of the most important viticultural consideration when planting grape vines. 葡萄园中土壤的成分是种植葡萄最重要的考虑因素之一。
- The principle of detection of the composite system composed of magnetism and laser used in fuzes was discussed. 摘要论述了磁与激光复合探测原理；
- Soil composition,steepness of slope and climate are the major factors but many other things come into play as well. 占士的哥哥在法国居住，经由他铺桥搭路之下，二人有机会尝到这些不会在市面出售的“私房酒”。
- The contamination factor, soil composition and four cleaning methods of mould were introduced. 本文介绍了模具污染因素、污垢成份和四种清洗方法。
