Meanwhile, the paper introduces Near-Infrared Spectroscopy to the analysis of triploid Populus tomentosa for the first time.
同时，本文首次将近红外光谱技术引入三倍体毛白杨的分析中。
Object: The naphtha was extracted from the flowers of Paulownia tomentosa (Thunb) Steud.
目的从毛泡桐花中提取挥发油。
The extraction of red pigment from Pruns tomentosa with resin was studied in this research.
以毛樱桃为原料，研究了用树脂法提取毛樱桃红色素。
The result shows that the Pometia tomentosa population is a continuous increasing population.
结果表明：该绒毛番龙眼种群表现为连续型增长种群；
Objective:To optimize the ultrasonic extraction for ursolic acid from Paulownia tomentosa(Thunb.
目的：确定毛泡桐中乌索酸的最佳超声提取工艺条件。
Meanwhile, the paper introduces Near Infrared Spectroscopy to the analysis of triploid Populus tomentosa for the first time.
同时，首次将近红外光谱分析技术应用到三倍体毛白杨的材性分析中来。
A study was conducted on the effect of different concentration of NAA treatments on the cutting propagation of triploid Populus tomentosa testtube plantlet cuttings.
研究了不同浓度NAA处理对三倍体毛白杨试管苗切段扦插繁殖的影响。
The naringin was extracted from Citrus grandis' Tomentosa' by water and hydrolyzed with acid to get naringenin. The structure of naringenin was determined by NMR and chemical reaction.
采用直接用水加热提取柚皮苷，再酸水解得到柚皮素。经核磁共振鉴定所得苷元为高纯度的柚皮素。
Wood basic density and fiber morphological features in the breast-height position for512-year-old excellent clones of Populus tomentosa Carr. (1CK)were measured and analyzed in this paper.
对12年生5个毛白杨优良无性系（另1个作对照）胸高处木材的基本密度和纤维形态进行了测定分析。
The stability of the red pigment from Prunus tomentosa Thunb was investigated by spectrophotometric methods in this paper, in order to provide a theoretical basis for the comprehensive utilization.
利用分光光度法系统研究了毛樱桃果实红色素的稳定性，从而为该色素的开发和利用提供科学依据。
The stability of the red pigment from Prunus tomentosa Thunb was investigated by spectrophotometric methods in this paper, in order to provide a theoretical basis for the comprehensive utilization.
利用分光光度法系统研究了毛樱桃果实红色素的稳定性，从而为该色素的开发和利用提供科学依据。
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