Plan, correct and optimize all steps until release of initial series production.

计划，纠正并优化所有的工序直至量产；

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Each takes three to four months to create, with Doran-Webb and his team of six craftsmen working together on the process, with each sculpture springing to life from a series of initial sketches and scale models.

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After determining the initial sex ratios of a series of clutches, the researchers added or subtracted chicks to increase or decrease the father's workload (a standard trick in avian ecology, made possible by the fact that parents do not recognise their own young until close to the time at which they leave the nest).

ECONOMIST: Sexy sons, dutiful daughters | The

"I haven't seen a single one of these things stick their initial landings or catapult a pre-existing series to new heights, " he said.

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