enforcement machinery的用法和样例：
例句
- Pneumatic valves regulate the pneumatic enforcement agencies and regulatory valves two.
气动调节阀由气动执行机构和调节阀两部组成。 - With a court-issued warrant law enforcement agencies could then get the keys from the escrow agents to decrypt suspect messages.
而后，利用法院颁发的保证书，法律执行机构能够从保管代理那里得到密钥，对可疑报文进行解密。
