Play great positioning pin ensures disc not because butterfly plate gravity drop, also can be installed in the valve stem end adjustment block to ensure that the butterfly plate fixed position.

弹赞定位销可保证蝶板不会因为蝶板重力作用下坠，还可在下阀杆端部设置调整块来保证蝶板位置固定。

youdao

There was nothing to fall back on so valvular surgery without an artificial valve - at least as a backup - was a very dangerous game to play.

所以，没有人造瓣膜的瓣膜手术是一个非常危险的游戏。

youdao

Moreover pipeline jamming, also will present the regulating valve not to play the control action the phenomenon.

另外管道堵塞，也会出现调节阀不起调节作用的现象。

youdao

The entire title is now free-to-play, with Valve only making money from microtransactions within the game.

FORBES: Valve's Team Fortress 2 Goes Free to Play

TF2 was where Valve first introduced free-to-play, as well as microtransactions with its hat system (among many other initiatives).

ENGADGET: Valve's Joe Ludwig on the uncertain future of virtual reality and partnering with Oculus

With any luck, that input will start rolling in soon: Valve is preparing to update its popular free-to-play shooter, Team Fortress 2 with a Rift-compatible VR mode, openly describing the update as an experiment.

ENGADGET: Oculus' Palmer Luckey and Nate Mitchell on the past, present and future of the Rift