短語詞組短語electric installation flat cost 電氣安裝工料費Installation Projects Cost List 安裝工程費用計取表installation project cost 安裝工程造價electric installation material cost 電氣安裝工料費Installation work unit cost 安裝工程單價amortized installation cost 設備折舊費component installation cost 部件設備費用control of installation cost 建安造價控制 返回 installation cost