pitch pocket是什么意思

网络释义

用法例句

The reaction products of a new pine gum catalytic disproportionation were analyzed by gas chromatography/mass spectrometry(GC/MS) using HP-5MS flexible quartz capillary column.

采用气相色谱-质谱技术对松脂的催化歧化新工艺的反应产物进行分析,共分离出45个峰,鉴定出其中的38个化合物,并发现松脂歧化产物中歧化松节油的主要成分为对伞花烃,含量为16。

Using a novel experimental apparatus with an improved agitator,a lumped kinetic model for the intermolecular hydrogen transfer reaction of pine gum over a Pd/C catalyst was investigated under nitrogen atmosphere.

以Pd/C为催化剂,在改进的动力学实验装置上研究了松脂分子间氢转移反应的集总动力学。

Using turpentine from pine gum itself as solvent,catalytic disproportionations of P.

以Pd/C为催化剂、马尾松和湿地松松脂为原料并利用其自身所含松节油作溶剂进行催化歧化反应制备歧化松香和对-伞花烃的研究。

Chemical Characteristics of High Content 3-carene Oleoresin from Pinus kesiya var.langbianensis;

高3-蒈烯思茅松松脂的化学特征

CHEMICAL COMPOSITION OF OLEORESIN OF PINUS SYLVESTRIS──The Main Pine Species for Oleoresin Production in Russia;

俄罗斯主要采脂树种──欧洲赤松松脂的化学组成

Differences of Physical and Chemical Characteristics of Oleoresin Among Provenances from Pinus Yunnanensis;

云南松种源间松脂物理化学特征差异研究

The Test for Quality of Clear Liquid of Resin in the Effect of Sylvic Quality Management;

松脂澄清脂液质量在松香质量管理中的作用

Relationship between Resin Monoterpenes and Resistance of Chinese Pine to Red Turpentine Beetle;

松脂单萜类物质与油松对红脂大小蠹抗性的关系

Based on the resin flow measurement of Pinus yunnanensis trees growing on three localities, Lijiang, Kunming and Gejiu of Yunnan Province, it recovered that the resin flow exhibited significantly differences among the three localities.

)松脂分泌量的测定揭示,云南松泌脂量因地 域而有明显差异,泌脂量多少与所在纬度的高低存在负相关。