The problem of benefit resembles as an inside stalk line, piercing through in the human activities and history progress.
利益问题像一根中轴线，贯穿于人类活动和历史进程的始终。
The cave's initial principal stress is tectonic stress, and the Max main stress's direction is perpendicular to the power house's stalk line.
洞室地应力以构造应力为主，其最大主应力方向与厂房轴线方向近垂直。
In the stalk pole spare part production line, it is a key work preface that straightener keep after the hot processing.
在轴杆类零件生产过程中，热处理后校直是一道关键工序。
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