Caterpillars move by a wave that starts at the back end of their body and sweeps through each segment until it reaches the head, pushing it forward.

毛毛虫移动时的每一波都是从身体的后段开始，然后这个波穿过身体的每一部分，一直到达头部，进而将整个身体向前移动。

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The works mainly comprise the body cells, cell fusion, nuclear transplantation, cell uptake and the reorganization of chromosome segment.

细胞工程主要包括体细胞融合，核移植，细胞器摄取和染色体片段的重组等。

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As a result of it, the wake of air forced backwards by one segment of the snake's undulating body may provide extra lift to the segment behind in the sidewinding glide.

这样，摆动树蛇的身体的前半部分擦过的空气尾流可对侧风滑行的后半部分起到提升的作用。

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The narrow-body aircraft segment is shaping up to be the next important battle ground for global aircraft manufacturers.

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