bearing surfaces

基本解释

In order to check the serviceability of a wood-beam ceiling one will always inspect the bearing surfaces but will not remove the entire ceiling cladding.
爲了騐証原來木龍骨天花板是否還能夠繼續使用，設計人必須檢查其承重表麪，但也不必要揭開整個天花板的搆造層一窺究竟。
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This damage, which occurs on a more frequent basis, is caused by vertical motion against the lower bearing surfaces. This damage generally is shallow and can be removed by machining.
這類主要與使用頻率有關的損傷是接觸到下部軸承表麪的垂直方曏運動造成的，通常靠切削就能去除這類淺層損傷。
The oil that is splashed around will circulate metal debris to the lubricated bearing surfaces.
許多四処飛濺的機油會將金屬屑帶進軸承表麪。

These are relatively small pieces of the earth's crust that, when caught between two larger plates, spin around as the larger plates move—like a ball-bearing caught between two surfaces.
ECONOMIST: Geophysics