求翻译：将被测幼苗截成2-3cm左右茎段，并测定各个茎段的直径和长度，直径取上下端直径平均值，茎末端叶片干重用烘干称重法测定，由于试验幼苗尚未形成明显的边材与心材，故以枝条直径代替功能木质部直径。是什么意思？

Seedlings will be measured about 2-3cm cut into the stems, and measured the diameter of each stem and the length, diameter, average diameter to take the upper and lower side, stem end of leaf dry weight re-drying method for the determination, the trial has not yet formed a clear seedlings sapwood an

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Was measured the seedling truncation becomes about 2-3cm the stem section, and determines each stem section the diameter and the length, the diameter is accepted after passing an examination the lower extremity diameter mean value, the stem terminal leaf blade dry weight with the drying weight metho

Will be cut into 2-3cm about measuring seedling stem and determination of stem segments of various diameters and lengths, diameter upper and lower-end diameter intake average, stem end reuse drying leaves dry weight determination, because experimental seedlings have not been striking sapwood and hea

Will be cut into 2-3cm about measuring seedling stem and determination of stem segments of various diameters and lengths, diameter upper and lower-end diameter intake average, stem end reuse drying leaves dry weight determination, because experimental seedlings have not been striking sapwood and hea