I found a copper disc and drilled 7 holes around the edge and one in the center.

我发现了一个铜圆盘和操练了7个孔在边缘附近和一个在中心。

youdao

The pivots are located just above the center of the disc, and offset from the plane of the body seat.

枢轴就位于阀瓣中心上，偏离阀体阀座平面。

youdao

Allocate random positions within a disc according to a given distribution for the polar coordinates of each node with respect to the provided center of the disc.

在按照一个给定分布极光盘随机地位坐标分派方面的光盘供给中间各节点。

youdao

All-Star center Tyson Chandler (bulging disc), forwards Amare Stoudemire (knee surgery), Kenyon Martin (sprained ankle), Marcus Camby (plantar fasciitis) and Rasheed Wallace (broken foot) are all out.

WSJ: Anthony scores 31 as Knicks top Cavs 101-91

So if you pop in a DVD "infected" with Protect DVD-Video, it can't be read by Windows Media Player, Media Center Edition, or any DirectShow-based software, thanks to a Universal Disc Format that tricks your machine into believing that the IFO file is zero bytes long.

ENGADGET: Protect DVD-Video prevents discs from playing on your PC