And a number of people are attempting to perfect ultrasonic techniques to deter - mine the strength and flexibility of bones.

还有许多人正在尝试完善超声波技术，以便能确定骨骼的力度和弹性。

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The perfect combination of J2EE and XML provides the system with good cross-platform ability, portability, expansibility, safety and flexibility.

J2EE与XML的完美结合为系统提供了很强的跨平台性、可移植性、可扩展性、安全性和灵活性。

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Perfect shoe flexibility allows the foot to move normally without any constraint.

完美的鞋的灵活性，允许脚通常没有任何约束。

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Perfect for travel, business or any kind of writing tasks, the iBTKB20 adds flexibility to mobility.

ENGADGET: iLuv unveils WorkStation docks, turns your iPad 2 / Galaxy Tab into a PC, sort of