Their F_2 is backcrossed with 7902- 4, and F_2 of this backcross is backcrossed again with 40354, and then selected by using the modified pedigree and bulk selection procedure.
回交亲本为7902-4和40354。杂种第二代用7902-4进行回交，回交第二代用40354再次回交，之后用改良系谱混合选择法进行选育。
A bulk progeny test is a simple way to learn the effectiveness of mass selection.
集团后代测验是了解混合选择有效性的一个简单方法。
The Bulk Actions menu may also be used to delete multiple topics at once. Select delete from the dropdown after making your selection.
批量应用菜单也可以一次删除多条话题。在决定要删除的话题后选择下拉列表中的“删除”选项即可。
Selection of several main equipments in Dayaowan bulk grain conveying system of Dalian Port is introduced.
介绍大连港大窑湾散粮工程输送系统中几种主要设备的选用。
It is thought he took the drugs to bulk up for selection into the Royal Marines.
据推测，他服用这些塑身药片是为了使身体粗壮，以备皇家海军甄选。
The selection of the value of c for drawing these contours is arbitrary (and chosen to include the bulk of the points), but nevertheless serves to identify observations removed from the data swarm.
为了绘制这些双曲线选定c值是具有主观性的（主要是为了包括这些数据点），不过这样就能辨别观察点从数群中的偏离。
The selection of the value of c for drawing these contours is arbitrary (and chosen to include the bulk of the points), but nevertheless serves to identify observations removed from the data swarm.
为了绘制这些双曲线选定c值是具有主观性的（主要是为了包括这些数据点），不过这样就能辨别观察点从数群中的偏离。
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