N a technique for producing hybrid stock, esp seed for cereal crops, by crossing the hybrids between two different pairs of inbred lines 双交; 两个单交种进行的杂交
By means of intervarietal crossing and linear selection, the new rape variety "Youyan No. 1" of low erucic acid and "Youyan No. 2" of "Double Low"(low erucic acid and low glusosiolate) have been bred.
通过品种间杂交和系谱法选择，育成了甘兰型低芥酸油菜新品种“油研1号”和甘兰型“双低”油菜新品种“油研2号”。
On the first floor, four bedrooms with double brick wall insulated and timber sliding louvers to prevent from direct sun light and allow crossing ventilation.
在二楼，四个卧室安装了双层砖墙和防止阳光直射、允许空气流通的木质滑动百叶窗。
The Railway-Crossing-Highway Overpass Bridge is along with the railway. It has six lanes, double-sided pavements.
公铁立交桥沿铁路方向，双向六车道，双侧人行道。
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