line of force

基本解释

A magnetic line of force is a closed line, that is, it forms a loop without end.
磁力線是一條封閉線，即，它形成一條沒有盡頭的圈。
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An electric line of force is also a closed line; it too forms a loop and returns on itself.
電力線也是一條封閉線；它形成一個圈，返廻原処。
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After the uninterrupted magnetic line of force treatment, the Masurium tower already continuously 6 months successes controlled the depression condition.
經過不間斷的磁力線治療，瑪塔已經連續6個月成功控制住了抑鬱症病情。

You know, one famous tactic is--if you have an infantry force coming forward, you send tanks in it to break up the line of the infantry, so that you can defeat the infantry in that way.
最有名的戰術是,如果有敵方步兵逼近,你把坦尅派過去,破壞他們的步兵陣型,以這種策略對付步兵
耶魯公開課 - 古希臘歷史簡介課程節選

Furthermore, under national labor law, China limits overtime to 36 hours per month, yet workers complain of production line demands that force workers to show up for double or triple those maximum limits.
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Sometimes a poem can consist of a single sentence, the impact of which builds and gathers force in anticipation of its final line.
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an imaginary line representing a field of force, such as an electric or magnetic field, such that the tangent at any point is the direction of the field vector at that point