The stereographic projection must be supplemented by other constructions. 赤平極射投影還要有其他的作圖方法加以補充。
To describe those blocks and analyze their stabilities, the stereographic projection diagram method is developed and employed. 為了準確地描述這些塊體并進(jìn)行穩定分析，提出赤平極射投影作圖法。
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