sling appliance 中文意思是什麼
sling appliance
解釋
吊繩操作器-
Usually the problem can be alleviated by a specially designed splint or sling or other mechanical appliance, used in the shoe.
在一般情況下,鞋裡加用特別的夾板,掛帶或其它機械裝置,就能解決問題。
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