The movable ball seal, having no centralized detrition, sturdiness and endurance...

活动式的球型密封无集中磨损，坚固耐用。

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The product is designed to have a seat like a spring rebound effect and the formation of double-flex seat, make sure the ball seal reliability.

该产品阀座设计成具有像弹簧一样的回弹作用而形成双挠性阀座，确保了球体密封的可靠性。

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The seal was trained to wait at a ball target and, when signalled, it entered the box.

经过训练，海豹在一个球形的靶子处等待，而一旦发出信号，它们便进入盒子里。

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Arca passed to George McCartney, who cut the ball back to Byfield and the former Rotherham marksman stroked the ball home to seal Wimbledon's fate.

BBC: SPORT | Football | English Div 1 | Wimbledon 1-2 Sunderland

The Scottish winger then turned goal-scorer as he raced onto Bellamy's exquisite 60-yard ball from his own corner flag to seal Cardiff's fifth successive home league win over Doncaster.

BBC: Sport - Football - Cardiff 4-0 Doncaster

And despite a few nervous moments, it was left to Malik to seal victory, smashing the ball for six with three balls to go before sparking scenes of celebrations amongst his teammates.

CNN: Pakistan in historic win over India in Twenty20 clash