China completes first 10-kilometer vertical takeoff and landing flight test of reusable launch vehicle successfully on Sunday test of a reusable launch vehicle in the country to date and the first application of a domestically developed deep-throttling liquid oxygen-methane engine. 中國可重複使用運載火箭週日成功完成首次10公里垂直起降飛行試驗，這是中國迄今可重複使用運載火箭的首次應用，也是國產深節流液態氧甲烷引擎的首次應用.