vessel(mechanical)seals
基本释义
[化] 釜用机械密封
实用场景例句
个人发展
His career took an upturn after he completed the training program.
完成培训计划后，他的职业生涯出现了转机。
市场观察
The stock market experienced an upturn in the second quarter.
第二季度，股票市场出现了上涨。
经济分析
The economy showed an upturn after the financial crisis.
金融危机后，经济显示出复苏迹象。
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