Cortical microtubules were observed in intraepidermal cells of onion bulb with a thin section and negative staining of protoplasts.
洋葱鳞茎表皮细胞内可见皮层微管，呈薄片状，原生质体染色阴性。
Cortical microtubules were observed in intraepidermal cells of onion bulb with thin section and negative staining of protoplasts.
用超薄切片和原生质体负染的方法，在电镜下观察到洋葱鳞茎内表皮细胞周质微管的存在。
The utility model relates to a miniaturized positive ion electrostatic field formed by an electric traveling band type flexible negative electrode and an auxiliary thin wire type positive electrode.
本实用新型是由电动走带式柔性负电极辅以细线状正电极形成一个正离子小型化静电场。
RESULTS: The micro character and thin layer chromatography was clear with no disturbance of negative sample.
结果：显微鉴别特征明显、薄层色普清晰，空白样品无干扰；
The characteristics of negative temperature state system were discussed, and compared with the image-forming behavior of thin convex lens.
分析了处于负温度状态系统的特征，并将其与薄凸透镜成像特征作类比，阐明了应用类比法讲授负温度状态的优越性。
The two approaches predict that a wedge-shaped thin film can produce large negative longitudinal GH shifts.
两种方法都预计楔形薄膜可以产生大的负纵向GH位移。
The present technique is a new thin cutoff wall construction method by modifying the original method as to use flat drill bit instead of cross bit and adopt positive and negative circulating system.
冲切成槽薄壁混凝土防渗墙施工技术是在原冲击成槽建造防渗墙的基础上，对冲击钻头和施工工艺加以改进，用扁钻头代替十字钻头，用正反两种循环系统进行泥浆循环的一种新防渗墙施工方法。
The present technique is a new thin cutoff wall construction method by modifying the original method as to use flat drill bit instead of cross bit and adopt positive and negative circulating system.
冲切成槽薄壁混凝土防渗墙施工技术是在原冲击成槽建造防渗墙的基础上，对冲击钻头和施工工艺加以改进，用扁钻头代替十字钻头，用正反两种循环系统进行泥浆循环的一种新防渗墙施工方法。
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