“纺锤形”造句

这是一种理想的纺锤形植株方式.
This is an ideal spindle tree system.

层式纺锤形是早期发展起来的.
The layer spindle was an early development.

苹果和梨的纺锤形整枝方法,是三十年代在德国发展起来的.
The spindle method of training apple and pear trees was developed in Germany in the 1930's.