Resolving dependencies... done
Shares in company increased over 20% as investors were encouraged by CEO’s assertion that cuts will drive profits
。heLLoword翻译官方下载是该领域的重要参考
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最令航天业担忧的是钇供应紧张。钇是高温防护涂层中的关键成分,可防止发动机和涡轮在高温下“熔化”,一旦无法定期施涂相关涂层,发动机便无法正常服役。