It kept a tight grip on the flow of capital across its borders.
对边境资本的流通进行了严密的控制。
Requirements: Valve must be tight against reverse flow under all pressure differentials.
要求：在所有压差下，阀门对于回流必须是密封的。
Requirement: Valve must be tight against reverse flow.
要求：这种阀门对于回流必须密封紧密。
Requirement: Valve must be tight against reverse flow.
要求：这种阀门对于回流必须密封紧密。
应用推荐