Results: The thickness of conical bone underplate became thinner gradually after 8 to 12 weeks fixation in both of SRP and HP groups, accompanied with lowering of CT value and mechanical strength.
If an ocean floor tectonic plate meets the edge of a continent and they push against each other, the heavier one sinks down and goes under the other one.
如果一个海底构造板块与大陆边缘接触并相互挤压，较重的板块下沉到另一个的下面。
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The oceanic plate is made of denser and heavier rock, so it begins to sink down under the continental plate and into the mantle.