1) Chemical constituents from stem of Cratoxylon cochinchinensis Bl.
黄牛木的化学成分
2) Chemical composition of loess
黄土的化学成分
3) wood chemical component
木材化学成分
1.
According to the Chinese standard for wood chemical component analysis,contents of the chemical components of Betula alnoides plantation were determined.
按照我国木材化学成分分析标准,对人工林西南桦木材化学成分进行了测定,结果表明含量分别为:纤维素47。
4) wood chemical components
木材化学成分
1.
Effec of Cultivation Measures on Wood Chemical Components of Eucalyptus Grandis Pulpwood;
培育措施对巨桉纸浆原料林木材化学成分的影响
2.
By using the model of quadratic common rotation established between planting density, N, P, K and synthetic value of wood chemical components of Eucalyptus grandis Pulpwood, mutual-efficiency and optimization choice were done.
利用造林密度、氮、磷、钾肥与巨桉纸浆原料林木材化学成分综合分之间的通用二次旋转效应模型,进行了因素的交互效应分析以及最优化选择。
3.
By using the design of quadratic common rotation including four factors, five levels, the basic models of efficiency were established between density, N, P, K and synthetic value of wood chemical components of Eucalyptus grandis pulpwood, and the quadratic regression models were simulated closely with reality by testing.
采用四因素五水平二次通用旋转组合设计方法,建立了造林密度、氮、磷、钾肥与巨桉纸浆原料林木材化学成分综合分之间的效应模型并对模型进行了主效应分析。
5) Cratoxylum
黄牛木属
1.
Chemical Constituents and Bioactivity of Genus Cratoxylum;
黄牛木属植物的化学成分与生物活性研究进展
6) Cratoxylum cochinchinensis Bl
黄牛木
1.
Objective To study the chemical constituents from stem of Cratoxylum cochinchinensis Bl.
目的研究黄牛木的化学成分,为开发利用黄牛木植物资源提供依据。
补充资料：黄牛
| 黄牛 中国固有的普通牛种。在中国的饲养头数居大家畜或牛类的首位，饲养地区几遍全国。在农区主要作役用，半农半牧区役乳兼用，牧区则乳肉兼用。头部略粗重，角形不一。体质粗壮，结构紧凑，肌肉发达，四肢强健，蹄质坚实。因自然环境和饲养条件不同而分为北方黄牛、中原黄牛和南方黄牛3类。饲养方法大致分为舍饲、半舍饲和放牧3种。 |
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参考词条