semi-auto folding umbrella

• 半自动折叠伞,半自动伸缩伞

semi-auto folding umbrella的用法和样例：

例句

1. Where do I go to buy a foldaway umbrella?
   哪儿能买到折叠伞呢？
2. All the sticks of the support can be designed as stretchable sheath-shaped tubes like that of Folding Umbrella, for easily adjusting the width and height of the support.
   支架的所有杆件均可设置成可以伸缩的结构，该伸缩结构可以采用类似折叠伞的伸缩套杆，从而能够很方便地调节支架整体的宽度和高度。