工作层面上的会议  working-level meeting

端面密封密封连接  face seal seal joint

1221上工作面  1221 upper working face

回采工作面上隅角  Upper Corner of Mining Face

上上下下  uphill and downhill; from cellar to rafter

上下面层分布  distribution of wearing and binder courses

井下工作面  mining face under mine

保护层工作面  coal mining face in protected seam

表面工作层  working layer

层面滑动  bedding slip; bedding glide

断层滑动面  slip zone

滑动层面  slip bedding; glide bedding

双(多)层滑动面  double or multilayer sliding planes

滑动密封  sliding seal

滑动密封轴承  friction sealed bearing

密封滑动轴承  sealed journal bearing

演奏长笛时为产生滑音效果而采取的一种手指滑动动作  Gliding

主动滑动面  Active surface of sliding

心理动作工作  psychomotor ability

知觉动作工作  perceptual skill