The first annular surface defines, at least in part, a first brake chamber.
第一环形表面至少部分地限定第一制动室。
The second annular surface defines, at least in part, a second brake chamber.
第二环形表面至少部分地限定第二制动室。
Circle surface of metal brake ring operated by quenching.
钢制动轮外圆表面经淬火处理。
The brake pin includes a first annular surface and a second annular surface.
该制动销包括第一环形表面和第二环形表面。
The brake pin includes a first annular surface and a second annular surface.
该制动销包括第一环形表面和第二环形表面。
应用推荐