En 12934 classifies fillings belonging to class I and IV as "new", since a percentage of other elements less than 5 % suggests that these fillings contain "new" feathers and down.
EN 12934对“新”填充物分类包括I级和IV级，如果其他原料少于5%，建议这些填充物标注“新”羽毛和羽绒。
I came to know him in September 1987 when Mr. Chen enrolled in my class on FORTRAN IV Programming, a three semesters' course.
我才知道他在1987年9月，当陈先生FORTRANIV编程，有三个学期的课程在我的班级就读。
I came to know him in September 1987 when Mr. Chen enrolled in my class on FORTRAN IV Programming, a three semesters' course.
我才知道他在1987年9月，当陈先生FORTRANIV编程，有三个学期的课程在我的班级就读。
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