... Mast-Brewer electrochemical sonde布鲁尔-马斯特电化学探空仪 mature forest stand成熟林分 maximum emission concentration最大排放浓度 ...
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The stand diameter distribution of juvenile stand appears an inversed "J"form, and that of the half mature forest approximately a normal distribution.
林分直径分布，幼龄林呈倒“J”型，壮龄林近似于正态分布；
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