英汉例句

• the genetic gains of superior families selected by progeny tests on early tree height, diameter breast-high and volume growth were 8.24%, 14.33% and 24.16% respectively.

  通过子代测定选出的优良家系，其有性后代在树高、胸径和材积早期生长的遗传增益分别为8.24％，14.33％和24.16％。

• breeding groups are being used to control inbreeding in a breeding population and to effectively achieve maximum genetic gains in some tree improvement programs of the united states.

  在美国的一些林木育种项目中，育种群已用来控制种子园的近交、捕获最大的遗传增益的有效措施。

• among which 19 fast-growing, high-yield and stable-yield fine families were selected, their average volume genetic gains reached 28 30% and they could be popularized in the whole province;

  运用遗传距离指数理论、聚类分析对参试家系进行综合评价。从中评选出高产稳定型速生优良家系19个，其材积平均遗传增益为28．30％，可在全省马尾松产区推广；

• selection differential and genetic gains are also estimated.

  计算了优树的选择差和遗传增益。

• the genetic gains of 17.8%, 18.6% and 18.7% would be got when 50 plus families were primarily selected based on dbh, height and volume respectively.

  根据胸径、树高和材积进行优良家系的初步选择，选择前50个优良家系所获得的遗传增益分别为17.8%、18.6%和18.7%。

• genetic variation and genetic gains of several principal characters of two strains were estimated, then the possibility of re-selection was discussed.

  研究了几个主要性状的遗传变异和选择潜力，探讨了性状再选择的可能性。

• among which 19 high yield and stable yield excellent families were selected, their average stem volume genetic gains reached 28 30%, and they could be popularized in the whole fujian proveince.

  从中筛选出1 9个高产稳定型优良家系，适宜在福建省范围内推广，其材积平均遗传增益为2 8 30 %。