叶互生，无柄，圆柱状，肉质，基部扩大的，先端钝或具芒；叶腋束状具柔毛。
Leaves alternate, sessile, terete, fleshy, base expanded, apex obtuse or aristate awned; leaf axil fascicular pilose.
为更好地完成功能，本发明所提供螺钉旋具的旋柄上还设计有加力装置。
To have better function, the rotating handle of the screwdriver is provided with a force applying device.
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