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.
揭示了速比变化比值对齿面滑移及齿面接触应力特性的影响。
The influence of the variable ratio on the slip and contact stress is also discovered.
六面体冰块，接触面大，可使饮料迅速冷却！
Hexahedral ice has big contact surface and can make beverage quickly cool down.
六面体冰块，接触面大，可使饮料迅速冷却！
Hexahedral ice has big contact surface and can make beverage quickly cool down.
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