si

The RE(Y)-Mg-Si-Fe nodularizer had been used to cast heavy sectioned high ductile nodular iron cooling wall castings.

应用钇基重稀土镁复合化剂，铸造厚大断面高韧性铁冷却壁，成功地获得了铸件中铸态高性能。

Once a year, the ballet dancer-goldsmith si ts on a trone set 5 meters high, in order to create spe ical ring, to be given to a special person.

每年，这芭蕾舞金匠都要坐5米高的宝座上，为一个特殊的人制造一枚特殊的戎指。