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系材的英文

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"系材"怎么读用"系材"造句

英文翻译手机手机版

  • accouplement

例句与用法

  • The experimental results show that the characters of tree height , dbh , and volume , etc . of every family progenies of pinus massoniana seed orchard are all evidently higher than those of control ( ck ) , 7 fine family materials whose volume growth exceeds the control ' s by 50 % are totally selected as the materials for building p . massoniana improved seed orchard and industrial raw material forest
    摘要对漳平五一国有林场马尾松种子园18个初选家系进行子代测定,采用随机区组设计、 8次重复,对6年生的树高、胸径、材积等性状进行测定,试验结果表明:马尾松种子园各家系子代均明显高于对照( ck ) ,共选出7个优良家系材积生长超过对照50 %以上材料,作为营建马尾松改良种子园和工业原料林的材料。
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