For high chromium cast iron with structure of preferred orientation, its retained austenite amount can be measured accurately by X-ray method of rotating and tilting specimenholder.
对有择优取向的组织来说，用旋转摆动的X射线法可准确测定高铬铸铁中残余奥氏体的含量。
2
The Mekong giant catfish is the current record holder based on the catch of a 646-pound specimen in 2005.
湄公河巨鲶因一条于2005年捕获的重达646磅的标本而成为了目前的记录保持者。
3
Only applicable to account holder, signature must be the same as the one on the specimen card of your account.