“你知道这会需要付出什么？”他一边问，还从他的公文包里取出两个晃动的金属球，“黄铜球……”。

"You know what it takes?" he asks, reaching into his attache case to display two metallic spheres dangling from a string. "Brass balls."..

youdao

低压力头应黄铜，并应靠近排水阀和中间包输送到一个排水板地板。

The low pressure header shall be brass and shall be near the panel floor with drain valves and tundishes piped to a drain.

youdao

金色黄铜包角，箱边以饰钉加固。

Golden brass corners and reinforced studded edges.

youdao