Large proportion of xylem benefit to the water transfer.

叶脉中木质部比重越大，越有利于水分的传输。

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If direct assessment in difficult, Benefit Transfer Method (BTM) is always used in evaluation process.

当直接评估存在困难时，成果参照法被经常采用。

youdao

If direct assessment in difficult, Benefit Transfer Method (BTM) is always used in evaluation process.

当直接评估存在困难时，成果参照法被经常采用。

youdao