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果树大小年
释义
果树大小年
Encyclopedia
农学
果树栽培
释
biennial bearing of fruits
果树大小年
果树每年的产量呈现明显的忽高忽低,一年结果特别多,下年结果很少或几乎不结果的植物生理现象。又称隔年结果、周期性结果。
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polluted road
polluter pay's principle
polluter pays principle
pollution
pollution abatement statistics
pollution by antimony
pollution by arsenic
pollution by asbestos
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pollution by boron
pollution by cadmium
pollution by carbon oxides
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pollution by cobalt
pollution by copper
pollution by cyanide
pollution by fluorine
pollution by food additives
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pollution by lead
Pollution by Manganese
pollution by mercury
pollution by molybdenum
pollution by nickel
pollution by nitrogen oxides
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