封装

例句：

1. 1. The engineer had to encapsulate the circuit board in plastic.
   工程师必须用塑料封装电路板。
2. 2. The package arrived safely, but the contents were damaged.
   包裹安全到达，但内容物受损了。
3. 3. The company has developed a new packaging solution for its products.
   该公司为产品开发了一种新的包装解决方案。