pipe diameter的用法和樣例：
例句
- The conditionality between the flow rate and the pipe diameter is discussed when the friction factor is fixed.
文中還分析了在摩擦阻力係數一定的情況下，流量與管徑的制約關係。 - Diameter of the suction and evaporating pipes should be decided by oil circulation and reconfirmation of gas speed.
吸氣管及蒸發器管徑，應考慮回油並再次確認流速后確定。
