The more Deere pondered the situation, the more convinced he became that a highly polished steel plow blade-instead of the conventional cast-iron model-could solve the problem.
迪尔越考虑这种情况，就越相信用高度抛光的钢犁片代替传统的铸铁犁片就能解决这个问题。
The more Deere pondered the situation, the more convinced he became that a highly polished steel plow blade-instead of the conventional cast-iron model-could solve the problem.
迪尔越考虑这种情况，就越相信用高度抛光的钢犁片代替传统的铸铁犁片就能解决这个问题。
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