Males stand and protect the egg by balancing them on their feet and covering them with feathered skin known as a brood pouch.

雄性站在那里保护这个卵，用双脚保持它的平衡，并用被称为育儿袋的有羽毛的皮肤覆盖着它。

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To guide the application of an active balancing device in industrial cantilever rotors, a cantilever rotor test stand was set up to perform an experimental study of active balancing technology.

为了指导主动平衡装置在工业悬臂转子上的应用，搭建了悬臂转子实验台进行主动平衡实验研究工作。

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And I'm not going to stand for balancing the budget by denying or reducing health care for poor children or those with disabilities.

WHITEHOUSE: President Obama on Economic Growth and Deficit Reduction