Beijing Institute of Aeronautics (BIA) used parts recovered from the Firebee wreckages to assemble two prototypes for flight tests in 1972 and these flew successfully.
1972年北京航空学院(BIA)使用从坠毁“火蜂”回收的部件组装了两架原型用于飞行测试并成功飞行。
The positive tests came amid a recent re-testing of 454 doping samples from the 2008 Beijing Olympics.
国际奥委会最近对来自北京2008年奥运会的454份兴奋剂检查采样进行重新测试。
The appropriate date of sowing of autumn greenhouse cucumber is selected from comparative tests for 5 different date of sowing in Beijing municipality.
通过对秋大棚黄瓜5个不同播种期进行栽培比较试验，筛选出适宜北京市大兴区秋大棚黄瓜栽培的适宜播种期。
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