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1)  modified alloy
改良合金
2)  Joint genetic improvement
联合改良
例句>>
3)  comprehensive amelioration
综合改良
1.
The effects of comprehensive amelioration of waterlogged paddy fields on the structure, seasonal dynamics and diversity patterns of arthropod communities were studied.
研究了涝渍地综合改良对稻田节肢动物群落的结构和季节动态及多样性格局的影响。
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4)  composite improvement
复合改良
1.
Based on the theories of slope vegetation restoration, agrology, bionomics and soil mechanics, the vegetation restoration method after lime stabilizing of expressway expansive soil in Guangxi Province is studied by inside experiment, which called composite improvement.
通过室内实验考察，全面比较对照了石灰土和复合改良土的性能，对复合改良方法的利弊做出了系统的判断。
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5)  Mixed amendment
混合改良
6)  King improved cotton
改良金字棉
补充资料：东北轻合金加工厂生产的铝合金挤压管材和空心材


东北轻合金加工厂生产的铝合金挤压管材和空心材


睽铝合;;:;;;、:;产的
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
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