N (in dogs) an abnormal increase in the thickness of the foot pads: one of the clinical signs of canine distemper (狗的)硬爪掌病 →see distemper
"Solid State" pads replace the usual mechanical switch and contact used in other hard pads.
“实心”跳舞毯替换了一般用在硬式毯的机械开关和接触器。
The pads are strong, hard and thick.
脚垫结实，坚硬而厚实。
"Hard" pads are usually constructed with metal (and sometimes wood) for durability and usually come with a raised bar behind the player.
“硬式”跳舞毯通常采用金属材料(有时木料)制成，玩家身后通常配有一个立起的横梁。
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