The bracket as - cast ferritic nodular iron breaks due to brittle fracture when it is assembled.铁素体球铁铸件支架在装配时发生脆性断裂失效.A soft ferritic stainless steel was introduced which could be manufactured the commemorative and enter...
Faculty members complain that their students are unprepared to do college-level work.学院的老师们抱怨说他们的学生还很不适应大学的课业。The water level in Lake Taihu has reached record levels.太湖水位达到了历史最高值。The results show the level of frustration...