细胞用来分离染色体的精细机器，是由成千上万被称为微管的微型管状组织组装而成的。
Hundreds of tiny tube-like structures, called microtubules, make up the machinery that cells use to separate the chromosomes.
一种新型水管，包括管壁和具有管内腔的管状体，其特征在于，所述的管壁(1)上沿轴向设有至少一条凹陷槽(2)。
A novel water pipe, comprising a pipe wall and a tubular body with a pipe cavity, wherein the upper edge of the pipe wall (1) is axially provided with at least one groove (2).
该器械包括长形管状体，该长形管状体包括相对于彼此倾斜的近端部分和远端部分。
The apparatus includes an elongate tubular body including a proximal portion and a distal portion inclined relative to one another.
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