常見(jiàn)例句雙語(yǔ)例句This invention changes its 200 years history of limitation to roof gutter and drainpipe, due to its easy bending, cutting and welding property.改變200年以來(lái)利用鋅金屬易於彎折、剪銲等加工特性而限於作爲(wèi)制造屋麪天溝及排水琯之用。 返回 welding gutter