Churn flow and annular flow are common flow patterns encountered in gas-liquid systems through conduits.

对垂直同心环形管内上升气液团状流向环状流的转换进行了研究。

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As another example, if you beef up customer service to improve churn, you directly impact future costs, and therefore deteriorate the potential cash flow contribution.

FORBES: The Dangerous Seduction of the Lifetime Value (LTV) Formula