There are two kinds of disease resistance, named qualitative resistance and quantitative resistance, which are controlled by single gene and multigene, respectively.
植物对病原物的抗性包括由单基因控制的质量抗病性和由多基因控制的数量抗病性两种。
The qualitative study mainly includes experimental researches on influencing factors of wear resistance, failure types and mechanisms of the wear of the material and contact analysis.
定性研究主要是对该材料耐磨损性能的影响因素、磨损失效形式、磨损机理进行试验研究和接触分析。
High strength, and creep resistance, high tenacity, qualitative hard, no cold rheology, mechanical properties with temperature rises, the reduced.
强度高，抗蠕变性能高，坚韧、质硬，无冷流变性，力学性能随温度升高而降低。
This paper introduces the test methods which provide a quantitative or a qualitative procedure for determining resistance of antimicrobial synthetic polymeric materials to microorganisms.
介绍抗菌高分子材料抗菌性的定性与定量检验方法。
Qualitative comparison of wear resistance between sintered iron base materials in common use has been made with the aims of providing reference for reasonable selection of various materials available.
对部分常用烧结铁基材料的耐磨性进行了定性比较，为合理选用现有各种材料提供了参考。
Qualitative comparison of wear resistance between sintered iron base materials in common use has been made with the aims of providing reference for reasonable selection of various materials available.
对部分常用烧结铁基材料的耐磨性进行了定性比较，为合理选用现有各种材料提供了参考。
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