external stemming

例句：

1. 1. The company's external stemming has been a majorcontributor to its success.
   该公司的外部源流一直是其成功的主要贡献者。
2. 2.The research team identified several external stemmings that could be exploited for energyproduction.
   研究团队识别了几个外部源流，这些源流可以被利用来生产能源。
3. 3.The study found that the external stemmingof the river had a significant impact onthe ecosystem.
   研究发现，河流的外部源流对生态系统产生了显著影响。