Dry sealing is achieved by means of pressure balancing principle as it adopts double EPDM rubber sealing strip.

双道三元乙丙胶条，利用压力平衡原理实现干式密封。

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Branding breastfeeding as natural and economical without fully acknowledging the difficulties of balancing family and career creates unnecessary pressure and guilt.

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Tony Tyler, IATA's director general and CEO, argues that the industry is "balancing on a knife edge" with even the sturdiest and more established airlines feeling the pressure.

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India in particular faces an increasingly untenable balancing act in maintaining its current accommodation of the junta, and will be under growing pressure this year to move toward a policy that better aligns its values and interests.

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