The catalyst was first produced by sol-gel method and the carbon nanotubes were high yield synthesized by the catalytic chemical vapor decomposition method.
首先采用溶胶-凝胶法制备镍催化剂，在此基础上用化学气相沉积法高产率地制备了碳纳米管。
Because of the high carbon residue of the feedstock, the yield of coke is very high. This will increase the charge of burning coke.
由于原料的残炭很高，焦炭的产率非常高，将增加烧焦负荷。
Yield and the quality formation of the high starch maize is closely related to dry matter accumulation, the nutrient uptake, carbon and nitrogen metabolism, and the grain sugar and starch formation.
高淀粉玉米产量和品质的形成与干物质积累、养分吸收、碳氮代谢、籽粒库的糖分与淀粉形成关系密切。
ConclusionCompared with steam distillation, the supercritical carbon dioxide extraction showed many advantages, such as short extraction time and high extraction yield.
结论与水蒸汽蒸馏法相比较，超临界萃取法具有萃取率高、耗时少等优点。
High yield, less waste, oxygen, carbon content are allowed in, for the next step of mono-crystalline silicon for the production of a high degree of quality guarantee.
良品率高、损耗少、氧、碳含量均在允许范围内，为下一步单晶硅片的生产提供了高度的质量保障。
The technical scheme of the present invention is characterized in the extensive source of coal based activated carbon, concise production process and high ester yield.
本发明技术方案具有煤基活性炭来源广泛、生产工艺简洁、酯收率高等特点。
The technical scheme of the present invention is characterized in the extensive source of coal based activated carbon, concise production process and high ester yield.
本发明技术方案具有煤基活性炭来源广泛、生产工艺简洁、酯收率高等特点。
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