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poplar canker
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poplar canker
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poplar canker
杨树溃疡病
树木枝、干局部皮层坏死,后期因坏死组织失水而稍有下陷,有时周围还产生一圈稍隆起的愈伤组织,溃疡病广义上除包括典型的溃疡病外,还包括腐烂病、枝枯病、干癌病等所有引起树木枝干韧皮部坏死或腐烂的病害。
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specialization cycle
specialization for abundance
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specialization ideal
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specialization ordering
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specialized archives retention schedule
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Specialized Course in Audio-Visual Education in National Institute of Social Education
Specialized Course of Film Screenwriting and Editing in Institute of Performing Arts
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