“保水剂”的概念、定义、翻译、参考文献-科学参考

单词	保水剂
释义	保水剂 Encyclopedia 农学保水剂释 water-retaining agent保水剂一种不溶于水，具有膨胀性且吸水力强的物质。能吸收自身重量几百倍的纯水，并可缓慢释放供作物利用，且能反复吸水。施用于土壤可减少水分养分流失，调节水、肥、气、热状况，改善肥力结构，是较好的土壤改良剂。
随便看	civil protective engineering Civil registration system civil religion civil right civil rights Civil Rights Act of 1866 Civil Rights Act of 1964 Civil Rights Act of 1968 civil rights acts Civil rights protection system Civil Rights (Supplement) civil rotorcraft civil ruling civil servant law civil servants administrative sanction system civil servants’code of conduct civil service Civil Service Act of the People's Republic of China civil service system civil service system of Australia civil service system of Canada civil service system of Singapore civil service system of the People's Republic of China civil society civil space activities

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