A chemical mechanical polishing pad comprising a water-insoluble matrix which comprises (a) a styrene polymer and (b) a diene polymer.

一种化学机械抛光垫，包含由(A)苯乙烯聚合物和(B)二烯聚合物构成的非水溶性基质。

youdao

A rail-pad type sensor is arranged on a sensor bedplate and is provided with a B-shaped fastener.

在传感器座板上面带有轨垫式传感器，传感器上带有b形扣件。

youdao

Oh, we almost forgot -- they've boosted out the keyboard in favor of a more useful D-pad and A, B, X, Y button formation -- which is, needless to say, awesome for playing awesome games.

ENGADGET: Seabright PC430 "micro PC" spurns keyboard, not coolness

Many of us whiled away untold hours of our youth mashing the D-pad, A and B buttons of the original Game Boy, which is why we've seen many hacks using its iconic hardware.

ENGADGET