FERRITE: a room temperature structure of steel formed when slow cooled from above the critical temperature. Low in carbon and relatively soft.
铁素体：从高于临界点的温度缓慢冷却下来时形成的一种钢铁常温组织结构。
The same period, the ocean thermal slow, relatively high temperature, air density changes smaller solipsism relative area of low pressure.
同一时期，海洋散热较慢，温度相对地较高，空气密度变化较小，遂形成相对的低压区。
From theoretical analysis, such bits have characteristics of slow temperature rise for bit face and low final balance temperature, which are the theoretical basis for bit design.
据此，设计了可缩短漫流通道并有利用降低温升的钻头唇形，为设计人员提供了理论依据。
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