“seedling gradation”的概念、定义、翻译、参考文献-科学参考

单词	seedling gradation
释义	seedling gradation Encyclopedia 农学〔苗木培育〕释 seedling gradation苗木分级对需要出圃的苗木按苗木质量标准进行等级划分。目的是使出圃苗达到国家规定标准，保证用壮苗造林，减少造林后的苗木分化现象，提高造林成活率和林木生长量。
随便看	torse-forming torsiograph torsion torsional angle strain torsional braid analysis torsional braid analysis (TBA) torsional deformation torsional effect torsional fatigue testing machines torsional force torsional hydromagnetic wave torsional meter torsional micro-balance gauge torsional mode torsional moment torsional oscillation torsional oscillator torsional pendulum torsional pendulum analysis torsional rigidity torsional strain torsional stress torsional susceptibility meter torsional vibration torsional vibration damper

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