Oil-absorptive material from Chinese fir thinnings are developed and its absorptive effects are also studied.
研制出了杉木间伐材炭化物吸油材料，同时对其吸油能力的影响作了研究。
The essential oil volume was 1.57% and 0.02% extracted from Chinese fir and Eucalyptusgreen wood, respectively, by steaming distillation method.
采用水蒸汽蒸馏法，获得杉木生材精油的得油率为1.57%，尾叶桉生材精油的得油率为0.02%。
Tea-oil tree~. Chinese fir and poplar wcre tested to determine whether nitrogen fixation occurred in these woody plants.
以油茶、杉木、杨树为研究对象，探讨木本植物根际联合固氮体系。
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