The vibration transmissibility of the vibration isolation system under complex vibration environment with the floor disturbance and the direct disturbance is defined and studied.
定义和研究了在基础干扰和直接干扰同时作用的复杂环境下隔振系统的振动传递率问题；
That of isolation methods for soil fungi and the indirect and direct enumeration methods for measuring soil fungi;
综述了分离土壤真菌的方法以及测定土壤真菌的间接计数法和直接计数法；
Objective: research systematically into the isolation, culture and direct differentiation to osteoblast of embryonic stem cells.
目的：系统的研究小鼠胚胎干细胞的提取、体外培养扩增和向成骨细胞定向诱导分化。
The paper researches the quadric direct-current source in non-saturation mode, and designs an isolation direct-current source which has non-ripples wave output.
本文对非饱和模式下的二次直流电源进行了研究，并设计了一种输出无纹波的隔离式直流电源。
The paper researches the quadric direct-current source in non-saturation mode, and designs an isolation direct-current source which has non-ripples wave output.
本文对非饱和模式下的二次直流电源进行了研究，并设计了一种输出无纹波的隔离式直流电源。
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