Now gate valves have been replaced by eccentric metal hard seal ball valves in the construction of some new unit and old unit revamping.

偏心金属硬密封球阀已在一些新装置建设和老装置改造中取代了一部分闸阀而得到应用。

youdao

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。

youdao

One seal tosses the ball a little too far.

一只海豹把球扔的太远了。

youdao

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

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

By not banishing ball players connected to performance enhancing substances to the permanently ineligible list or affixing an asterisk next to historical achievements that have clearly been compromised, Major League Baseball has given its seal of approval to a collection of fraudulent ball players.

FORBES: A Hall of Fame Quandary Involving Sportsmanship, Integrity and Character