surface-supplied compressed-air-diving 水面供给的压缩空气潜水 surface-to-surface contact 面-面接触 surface-to-volume ratio 表面积-体积比 ..
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采用面-面接触模型模拟了纵波在一维岩体中的传播，给出了纵波波形；
The propagation of P-wave in one-dimensional rock masses is analyzed according to plane to plane contact model.
这种材料的选择很简单：鞋材以一层碳纤维为主，碳纤维能提供鞋子必须的支撑强度，也很有弹性，接触脚的一面贴着皮革，鞋底的一面贴着橡胶。
The material choice is simple: the shoe is a laminate with Carbon fibre for the core which gives the shoe its spring and strength, leather on the foot side and rubber on the walking wearing side.
密封接触面比一般工业接头的密封接触面复杂得多。
The sealing contact surfaces are much more sophisticated than those of a general, industrial connection.
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