1、
The regeneration system used by stems of one-year-old pyrus betulae folia Bge.
本试验以一年生杜梨茎段为材料,建立其离体再生体系.
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2、
He carelessly knocked over the silkworm tray , leaving the floor covered with folia mori.
他一不小心打翻了蚕匾,桑叶散满了一地.
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