研究了从火炬树果穗中提取红色素的方法，并对其进行精制。
A method of extracting and purification natural red pigment from ear of torch tree is proposed.
火炬树子株前端水平侧根直径与其地径、冠幅、树高的相关性高于后端水平侧根直径；
The correlation between the diameter of the front lateral root of Staghorn sumac and its basal diameter, crown width and height is more significant than that of the back part of the lateral root.
本论文采取了野外调查和室内试验相结合的研究方法，对外来种火炬树是否对引种地生态环境构成生物入侵的问题进行了研究。
In this paper, the methods of the field investigations and laboratory testing were applied to come to a conclusion if Rhus typhina causes the biological invasion for the local environment.
右侧是在f/2.8的光圈拍摄的：火炬灯为焦点，但是背后的房屋和树已经模糊得难以辨认了，这就是浅景深。
The right side, on the other hand, was shot at f/2.8: The torch is in focus, but the trees and the house are melted beyond recognition.
右侧是在f/2.8的光圈拍摄的：火炬灯为焦点，但是背后的房屋和树已经模糊得难以辨认了，这就是浅景深。
The right side, on the other hand, was shot at f/2.8: The torch is in focus, but the trees and the house are melted beyond recognition.
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