结果表明，地膜和秸秆双元覆盖模式下小麦籽粒产量比对照增产12。
The results show that, under the dual mulching mode of plastic film and straw, the grain yield increase by 12.
德国“双元制”教育模式是享誉世界的一种职教模式，是德国经济腾飞的秘密武器。
German "Dual System" is a worldwide famous vocational education pattern, due to which German economy soars.
双元制课程模式是德国职业教育的主体和核心，在教学方面、课程方面都有其独到的特色。
The dual constitution of curriculum, the core and main body of German vocational education, plays a peculiar role in teaching and curriculum.
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