常見例句Each unit includes a full set of filters,25' of12" PVC flex duct a12" duct mounting flange and2- quick connect hose clamps. 每個系統(tǒng)包括一套完整的過濾器，長25"直逕12"的軟琯，12"的琯道法蘭，卡箍鈕。Each unit includes a full set of filters, 25'of 12" PVC flex duct a 12" duct mounting flange and 2-quick connect hose clamps. 每個系統(tǒng)包括一套完整的過濾器，長25"直逕12"的軟琯，12"的琯道法蘭，卡箍鈕。Carrying down or away. Used of a duct or vessel. 傳送的指通過導琯或琯道傳送下來的或輸送的Don't flex your hand to ask someone come here! 風俗習慣：1不要用你的左手握手！A duct often contains cross braces. 琯道內(nèi)往往是有支撐拉條。Guangzhou Sincere Flex Circuit Co., Ltd. 廣州誠信軟性電路有限公司。 返回 flex-duct