Be proficient in lean production theory and field waste improvement, efficiency improvement, manufacturing logistics and other improvement techniques;

精通精益生产理论和现场浪费改善、效率提升、制造物流等各种改善技法；

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Given today's materials and know-how, automotive engineers reckon a 10% reduction in vehicle weight yields a 6% improvement in efficiency.

ECONOMIST: Tech.view: Unbearable lightness? | The

Apple is not opposed to such a result if it occurs in the context of an overall improvement in efficiency, flexibility and competitiveness.

FORBES: Apple Willing To Pay More Taxes To Get An Efficient System

It believes reform should be "revenue neutral" and that though these changes may increase its own taxes, it would not be opposed to such a result "in the context of an overall improvement in efficiency, flexibility and competitiveness".

BBC: Apple 'among largest tax avoiders in US' - Senate committee