metallograph的音标：metallograph的英式发音音标为：[mɪ'tæləgrɑ:f]metallograph的美式发音音标为：[mə'tæləˌgrɑf]...

In this paper the metallograph of BT 20 titanium alloy is analyzed.本文首先分析了BT20钛合金的金相组织....

n.显微照片...