W3338和W255是四川农业大学水稻研究所筛选的水稻双苗品系，它们的双苗特性能稳定的遗传。
W3338 and W255 are twin seedlings rice (Oryza sativa L.) of heredity stability, identified from rice Research Institute of Sichuan Agricultural University.
四川绵阳飞云大桥的主桥系三跨系杆拱桥，横向设两根拱肋，构成“双弓体系”。
Two arch ribs are installed in transversal direction to form a"double bow system".
目的 探讨低剂量双源CT在儿童川崎病冠状动脉病变诊断中的应用价值。
Objective To investigate the value of low-dose dual-source CT in the diagnosis of coronary lesions in patients with Kawasaki disease.
应用推荐