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寒害
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寒害
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农学
寒害
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chilling damage to tropical and subtropical crops
寒害
热带、亚热带植物在冬季生育期间受到一个或多个低温天气过程(通常在0~10℃,有时低于0℃)影响,造成生理机能障碍,导致减产或死亡的现象。狭义的寒害仅指零上相对低温对热亚热带植物造成的危害。由于寒害发生过程中有可能伴随着霜冻、冻害的发生,又称寒冻害。
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unimolecular
unimolecular acid catalyzed acyl oxygen cleavage
unimolecular acid-catalyzed acyl-oxygen cleavage
unimolecular acid catalyzed alkyl oxygen cleavage
unimolecular acid-catalyzed alkyl-oxygen cleavage
unimolecular adsorption
unimolecular base catalyzed alkyl oxygen cleavage
unimolecular base-catalyzed alkyl-oxygen cleavage
unimolecular electrophilic substitution
unimolecular elimination
unimolecular elimination [reaction] through conjugate base
unimolecular elimination reaction through conjugate base
unimolecular elimination through conjugate base
unimolecular free radical nucleophilic substitution
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unimolecular nucleophilic substitution
unimolecular reaction
unimolecular reaction rate theory
unimolecular reaction theory
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