短语词组短語lower coverplate 下蓋板coverplate passageway 蓋板通道upper coverplate 上蓋板coverplate oven 繙譯coverplate stress 蓋板受力ejection coverplate 拋殼孔蓋板COVERPLATE BLANK YELLOW STANDARD 産品描述COVERPLATE DUPLEX MULTI OUTLET 産品描述 返回 coverplate