◎ 外胎 wàitāi
(1) [tire (cover)]∶橡膠和纖維做的充氣輪胎的外殼
(2) [carcass]∶充了氣的或可充氣的球的外層球胎

1.cover tyre; tyre casing; outer cover; cover; casing; tyre cover; shoe; covering

車輪的外帶。即包在內(nèi)胎外面直接與地面接觸的輪胎。