operating stem 中文意思是什麼
operating stem
解釋
操作桿-
From the viewpoint of method, the first step is to determine the available investment options or opportunity set of the locations of crude oil tankers zone involving some six representative factors such as the unit engineering expense, unit operating cost, constructing period, the location land features, unit constructing engineering amount, unit land opportunity cost. these factors stem from the economic, societal and environmental regulations and rules. the second step is to specify how to choose among these available options
從方法上來看，首先確定以單位工程造價、單位運行成本、建設期、地形特徵、單位土建工程量、單位土地機會成本等六個綜合經濟、社會及環境指標為代表的原油罐區方案決策目標集，其次制定桃園、西山、填海三個決策待選方案，然後建立基於優先關系的相對優屬度矩陣及各影響因素的權重集，從而進行模糊動態規劃評價，最後優選出最佳的桃園方案。 -
Fully enclosed, lubricated stem drive system with needle bearings ensures low operating torque
全封閉、潤滑閥桿驅動系統，配置滾針軸承確保降低操作扭矩。 -
Recommended practice for drill stem design and operating limits
鉆柱設計和操作限度的推薦作法 -
Lower operating torque due to non - rotating stem. torque arm prevents rotation, indicates position and actuates limit switches
由於沒有旋轉閥桿，所以工作扭矩更低。轉距臂防止旋轉，顯示位置和限制開關的啟動。 -
Check the operating condition of electric draw stem and electricity parts. check the electric hydraulic parts and pipe joints
定期檢查電動推桿及電氣部分的運行情況，電液部分的運行情況及管接頭處是否有泄漏現象。
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