原文: The developed countries are rich in skilled work force and capital resources, so they can concentrate on producing many technology-intensive products such as computers, aircrafts, and so on.
译文: 发达国家拥有富贵的熟练劳动力和资本，所以能集中生产很多技术密集型的产品，比如计算机、飞机。

原文: The developed countries are rich in skilled work force and capital resources, so they can concentrate on producing many technology-intensive products such as computers, aircrafts, and so on.
译文: 发达国家拥有富贵的熟练劳动力和资本，所以能集中生产很多技术密集型的产品，比如计算机、飞机。

改进的译文：发达国家拥有大量的熟练劳动力和资本,所以能集中生产很多技术密集型的产品,比如计算机,飞机。