demarcation point

基本解释

The incident is the latest in a line of military encounters at the Northern Limit Line (NLL), the de facto demarcation point at which North and South Korean waters meet.
該事件是北方分界線上一連串軍事沖突的最新一起，而實際的分界點是在朝鮮和韓國相接的水域。
Industrial Revolution was the demarcation point of human history, and the policy of private forests subsidies were also brought forward and applied in such special period.
工業革命是人類歷史的分界點，而有關私有林的補貼政策也在這樣特殊時期提出、應用。
After the functional relation between designed flow rate and water demand unit is analyzed, the concept of demarcation point of water supply is put forward, which is convenient for actual .
文章通過實例，詳細討論了三種計算方法的郃理性，通過討論設計流量與用水單位數之間的函數關系，最後提出給水分界點的觀唸，便於工程實際應用。

But I would say in 2005 is really the demarcation point.
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The actual demarcation point will come when vendors receive firm orders for volume production which normally occur 12-16 weeks before a phone appears on the shelf.
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