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- The interrelations between acid rain and soil ecosystem are analysed.Acid rain could change soil acidity, enhance soil toxicity, reduce soil active,destroy soil structure. 酸雨能改变土壤生态系统中土壤酸碱性，增加土壤毒害，降低土壤活性，破坏土壤结构，同时土壤生态系统影响酸雨的形成和污染。
- These two parameters could be used for estimation of the durability of the active acid operated in the plant. 根据这两项资料可作为判断活性白土，对不饱和烃的吸附强度及持久性之依据。
- Progress on the study of Soil Active Organic Matter 土壤活性有机质的研究进展
- The commercial standard herbicide fenoxaprop-P had no soil activity and provided inadequate postemergence control of Japanese bromegrass and goatgrass. 对照药剂精恶唑禾草灵无土壤处理活性，苗后茎叶处理对雀麦和节节麦也无明显活性。
- The practice shows that the humus soil activated sludge process can enhance nitrogen and phosphorus removal,improve greatly the sludge dewaterability and realize the odor... 实践表明,腐殖土活性污泥工艺可强化对氮、磷的去除,使污泥脱水性能大大改善,实现污水处理流程的无臭化。
- In the term of yield and quality of cucumber,optimum treatment(N2) were not different from the conventional fertilizer treatment,but it could increase Vc content and active acidity(pH). 从产量和品质看,减少氮的用量,黄瓜产量会降低,但推荐施肥与传统施肥处理差异不明显,而推荐施肥能提高果实中Vc含量、有效酸度(pH),改善黄瓜的口感。
- Dynamics of soil active organic matter in Chinese fir plantations 杉木人工林土壤活性有机质变化特征
- Some plants push their roots deep into the soil. 一些植物的根深深长入土中。
- Such crops won't grow in limy soil. 这类作物不能在石灰质的土壤中生长。
- What shall we grow in this alkaline soil? 我们应该在碱性土壤里种什么？
- There are a lot of worms in the soil. 泥土中有许多蠕虫。
- Roses will not root in such acid soil. 玫瑰在这种酸性土壤中不会生根。
- Water has permeated (through) the soil. 水已渗遍那片土壤。
- There are some clods of soil on the mat. 垫子上有些土块。
- The earth in the garden is good, soft soil. 花园里的泥土松软肥沃。
- This kind of soil contains much alkali. 这种土壤含碱丰富。
- She makes her living from the soil. 她以务农为生。
- Keywords Folium Artemisiae Argyi;essential oil;GC-MS;steam distillation;active acid and basic ion water; 艾叶挥发油;气相色谱-质谱联用;水蒸气蒸馏;活性酸性和碱性离子水;
- Grass will not succeeded in this dry soil. 在这种干燥土壤中草不会成活。
- The soil absorbs only a fraction of the rain that beats down. 土壤只吸收猛打到地面上的雨水的一部分。
