由相邻较近的若干分带组成,并具有独特生产系统的开采区域叫做带区。 在阶段内沿煤层走向把阶段划分为若干适合于布置采煤工作面的长条,每一个长条叫做一个分带。分带相当于采区内的区段旋转了90°。
返回当前带区中当前行的展开及折叠状态。
Returns the expand and collapse state of the current row in the current band.
返回或设置当前带区当前行的展开及折叠状态。
Returns or sets the expand and collapse state of the current row in the current band.
脑缺血后,及时恢复缺血区脑组织的血液供应,尤其是缺血半暗带区的血液供应,对于缺血性脑血管病的治疗与预后意义重大。
To recover blood supply of brain tissue in ischemic region especially in ischemic penumbra in time, it will have great significance in treating and prognosis.
Electropositive is down to the left because that is where the metals live.
带正电性的元素常,在左边因为那里是金属区。
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