NOTE: Twin Disc Check Valves can be installed horizontally or in the vertical position with flow up. 注意:双阀瓣止回阀水平安装,或在流向朝上时垂直安装。
Objective: To discuss the advantages of molybdenum and rhodium twin target X-ray machine to check mammary gland ( the traditionally used is single target molybdenum X-ray machine). 目的探讨乳腺钼/铑双靶X线机(传统的为钼单靶机)筛查早期乳腺癌的优点。