In a pot experiment,3 soils(acidic yellow soil,neutral purple soil and calcareous purple soil),mixed up with peat,vermiculite,rice husk,sawdust or sand,were used as growth media to study their effects on the growth of Eucalyptus maideni F.
以酸性黄壤、中性紫色土、钙质紫色土3种土壤,以及草炭、蛭石、谷壳、锯末、河沙等为主要基质,按照不同比例配制,进行直杆蓝桉容器育苗实验。
Organic-inorganic compound fertilizers were applied to 2 neutral purple soils in Chongqing to study their effects on the yield and nitrogen recovery of the rice crop and on nutrient content in the soil.
在重庆地区 2种代表性中性紫色土上 ,研究有机无机复混肥对水稻产量、氮素利用率及土壤养分的影响。
Study on Stability of Neutral Potassium Permanganate Liquid;
中性高锰酸钾溶液稳定性研究
Experimental study on prevention of Parkinson disease by neutral amino acid;
中性氨基酸对帕金森病发生干预的实验研究
The bentonite modified in the form of high concentrated neutral suspension with fluoride sodium, which is used as microparticle retention aid in papermaking industry, is compared with the conventional bentonite slurry modified by sodium carbonate and initiatively studied with laboratory scale.
采用中性盐氟化钠对膨润土进行液体改性,并与常规的碳酸钠改性膨润土做对比。
On the empirical studies of monetary policies neutrality and asymmetry;
货币政策中性与非对称性的实证研究
This paper introduces the neutrality of technology and analyzes the impossibility of neutrality of technology through three aspects.
本文在简介了有代表性的技术中性论的观点之后 ,从三个方面分析了现代社会中技术中性的不可能性 ,同时指出了技术的负面作用与社会及人性的相关性。
The research of tax neutrality will be helpful t.
税收中性理论体系一直以来是税收经济学的重要理论体系，税收经济学的最终目标是建立中性税制，税收中性理论随着中性税制的不断实践一步步得以深化，从开始的绝对中性理论发展为相对中性理论，从一味地否定税收调控到强调中性与调控的有机结合，从一味追求最优效应到结合实际地追求次优效应，税收中性理论正逐渐走向完善。
Based on the analysis of Hicksian neuter assumption on technology progress,this paper puts forwards neuter s popularity and computes the rate of contribution to the economic growth since China adopted the reform and open-door policy.
本文在分析经济增长的技术进步因素的希克斯中性假定的基础上 ,利用势分析方法提出了中性假定的一般性 ,并计算了我国改革开放以来技术进步对经济增长贡献率。