However, the profit margin achieved by producers and operators through improved operations and management, application of new technology, reductions in costs or an increase in efficiency shall be excepted.是什么意思_However, the profit margin achieved by producers and operators through improved operations and management, application of new technology, reductions in costs or an increase in efficiency shall be excepted.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句