They have a precision ground finish on both sides to prevent packing and seat damage.

闸板两侧经过精密的精磨加工工艺，能够防止密封填料和阀座的损坏。

They feature a precision ground finish on both sides to prevent packing and seat damage.

闸板两面均经过精密精磨加工，避免损坏填料和阀座。

One thing most people don't realize is that if we don't finish the job on eradication, we will lose a lot of the ground we've gained over the past two decades.

许多人没有意识到的一件事是如果我们不能完成根除这个任务，我们将会丧失我们在过去20年中取得的成就。

For years, before environmentalism made it illegal, he ground up small whales and basking sharks to make the best bait. Sometimes he shot sharks to finish them off.

有好多年，他都会圈捕小鲸鱼和姥鲨来做最好的鱼饵，有时还会射杀鲨鱼，环保主义后来把这些行为定为违法行为。

Arsenal resume their Premier League campaign against Sunderland on Sunday with plenty of ground to make up on their rivals for a top-four finish.

阿森纳将在本周日对阵桑德兰。这也是他们追赶英超四强脚步的大好机会。