air-breathing two-phase Pulse Detonation Engine (PDE)

• 吸气

air-breathing two-phase Pulse Detonation Engine (PDE)的用法和样例：

例句

1. He sucked hard for air to keep breathing.
   他拼命吸气以维持呼吸。
2. You just practice mindful breathing in and out.
   你只要专注地吸气和呼气。