侵入期（penetration period）

[名词解释] 隐蔽期（eclipse period）

[名词解释] 循回期（circulative period）

[名词解释] 获毒（取食）期（acquisition period）

[名词解释] 投资偿还期（N，Pay Back Period）

[名词解释] 安全壳贯穿件 containment penetration assembly

[名词解释] 侵入期

[单选题]The notice period for a hedge fund is best described as the period followin

[名词解释] 潜育期（incubation period）

[主观题]市场周期（Market period）

[单选题]The period of valve overlap is when （）.A . the inlet valve is openB . the exhaust valve is openC . both valves are closeD . both valves are ope