英德
有道
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外套筒 [wài tào tǒng]
[机] outer sleeve
outer thimble
outer thimble
- 外套筒分别与传感器套筒和外套筒帽之间以螺纹连接；
an outer sleeve is respectively connected with the sensor sleeve and an outer sleeve cap in a screw connection way; - 最接近的缸孔块有一个套筒到位，而其他外套筒显示块。
The closest cylinder hole in the block has a sleeve in place, while the other sleeve is displayed outside the block. - 使用时，将外套筒拉下到卡死位置，此时，八根钢丝绳拉紧，将八根骨架拉起、伞拉开。
When the utility model is used, an outer sleeve barrel is pulled down to a locked position, and then, the eight wire ropes are tensed to pull up the eight frameworks and stretch the umbrella.
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