It's part of the East African Rift Valley, a massive tear in the earth's surface, thousands of miles long.
它属于东非大裂谷的一部分；大裂谷在地球表面一道巨大的深裂地形，绵延数千英里之长。
A dry eye is caused by a disturbance in the tear film overlying the ocular surface.
干眼是由覆盖于眼表的泪膜紊乱所引起的。
Economy tape, especially for protect circuit board with irregular surface. No residue remained when removed. Tear off once it solidify.
经济型胶带特别适用于保护表面不规整的线路板，揭除后不会留下任何残胶，固化后立即揭除。
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