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。

Fixed section bearings form one group of thin section bearings.

固定型轴承形成一组薄型轴承。

The use of thin section boings can simplify structural design, reduce weight and economise on cost.

采用薄壁轴承，可以简化结构设计，降低重量并节省成本。

A new method of the preparing ultra thin section specimen using mini vibrator is described in this paper.

介绍了一种全新的电子显微镜下超薄切片样品制备方法。

There are two types of specimens routinely prepared for analysis, thin section and polished bulk specimens.

用于岩相分析的试样有薄截面试样和经过抛光的块状试样两类。