two way cross

For two Lonicera, shows the best way of pollination is the cross pollination, seed set that is both pollinated flowers with high and low rate, the number of pollinator species have some connection.

说明黄花忍冬和金银忍冬的最佳繁殖方式的异花授粉，即二者的结实率与传粉者访花率高低、传粉者种类的多少有一定的联系。

The studies on reproduction of two-way cross brood sow in three-way cross system

猪三元杂交体系中不同二元母本繁殖性能的研究

Two-Way Non-adhesive Prestressed Criss-Cross Girder Construction

双向无粘结预应力井字梁施工

Study of Productivity for Dingyuan, Two way Cross and Three way Cross Pigs

定远猪二元和三元杂交组合生产性能的研究

Three-way cross bacon type pigs with starting weight 15 kg of Duroc × Landrace × Large White or Duroc × Large White × Landrace were randomly divided into five groups. There were two control groups and three experiment groups.

选用15kg左右的杜×长×大或杜×大×长三元杂交瘦肉型小猪70头，分成5个组，设2个对照组及3个试验组。