The inner lip and the outer lip respectively prevent oil from spilling, and prevent impurities from entering on different positions, and simultaneously play dual protection to the universal joint.
两者在不同 位置分别防油溢出、防杂质进入，同时对万向节起到了双重保护。
The researchers foundthat as long as the grounding line is on the outer rise of the sea bed, before the lip, small changes in climate lead to correspondingly smallchanges in the glacier's ice volume.
研究人员发现只要地平线处于海床的外部隆起处，在裂缝增加之前，气候的轻微变化就会相应导致冰川体积的微妙变化。
Thinly coat sealing lip and outer circumference of sealing ring with vaseline.
将密封圈的外圆和密封唇上涂上一层薄薄的凡士林。
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