| 释义 | 
             
                soil conservation extension
                
            土壤保持tǔ rǎng bǎo chí 
 soil conservation节能jiē néng 
 energy conservation守恒shǒu héng 
 conservation; conserve城市节水chéng shì jiē shuǐ 
 urban water conservation垡fá 
 turn up soil; upturned soil节约用水jiē yuē yòng shuǐ 
 water conservation; saving water瘦土shòu tǔ 
 infertile soil质量守恒定律zhì liàng shǒu héng dìng lǜ 
 conservation of mass耪地pǎng dì 
 hoe the soil拓荒tuò huāng 
 cultivate virgin soil分机fèn jī 
 extension外延wài yán 
 extension淋洗土壤lín xǐ tǔ rǎng 
 washed out soil; washed off soil地面土壤dì miàn tǔ rǎng 
 surface soil圩田土壤xū tián tǔ rǎng 
 polder soil沃土wò tǔ 
 fat soil; fertile soil燥红土zào hóng tǔ 
 dry red soil耗竭土壤hào jié tǔ rǎng 
 exhausted soil; impoverishment of soil; depleted soil能量守恒néng liàng shǒu héng 
 conversation of energy; conservation of energy; energy conservation土层tǔ céng 
 solum; soil horizon; soil layer贫瘠土壤pín jí tǔ rǎng 
 lean soil, poor soil土壤改良tǔ rǎng gǎi liáng 
 soil improvement, soil dressing淤泥潜育土yū ní qián yù tǔ 
 slimy gley soil能源保护néng yuán bǎo hù 
 energy conservation能量守恒定律néng liàng shǒu héng dìng lǜ 
 law of conservation of energy; conservation of energy
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