water and land conservation
水土保持(water and land conservation)
to conserve water and soil
水土保持(to conserve water and soil)
[土壤] water and soil conservation
水土保持(water and soil conservation)是指对自然因素和人为活动造成水土流失所采取的预防和治理措施,是防治水土流失,保护、改良与合理利用山丘区、丘陵区和风沙区水...
soil and water conservation
水土流失(Soil and Water Losses )和水土保持(Soil and Water Conservation)是两个相对的概念,虽然未在国际经典辞书上找到专门简明释意条目,但根据一些国际学术专著,它们的意义也是比较明确的。
the Soil Conservation Law ; law of soil and water conservation ; Soil and Water Conservation Law ; Law of Water and Soil Conservation
Law of the People's Republic of China on the Conservation of Water and Top Soil
erosion control plastic net