The problems of using steel strap in bale packaging in cotton industry in China were analyzed.
概述铜包钢丝的生产方法，分析国内生产存在的问题，介绍产品标准及其应用。
Long March 2e, a large strap-on launch vehicle developed by China, represents a major achievement of the country in space launch technology.
长征二号e是中国最新研制出来的一种大型捆绑式运载火箭。
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