The secondary school that follows takes students from ages 11 to 15 and is broken up into various "forms, " which are the equivalent of American grades (as in first grade).
法国中学接纳11至15岁的青少年入学。 中学分几个级别，这种级别划分相当于美国学校里的年级划分。
2
Concept of gradeequivalent, major working methodology and factors impacting secondary orebody outlining by gradeequivalent are described.
主要阐述了当量品位的概念、主要工作方法及影响当量品位法二次圈定矿体的各方面因素。
3
Also, the insulation was replaced to achieve equivalent quality of new houses as to meet the 4th grade energy saving performance evaluation program requirements in Japan.