critical component

• 关键部件

critical component的用法和样例：

例句

1. As its critical part, the excellent readout plays a key role in JR FPA.
   读出电路是其关键部件，良好的读出电路性能在红外焦平面阵列中发挥着重要的作用。
2. Smart cards are a key component of the public-key infrastructure on which E_Commerece is based.
   智能卡是基于公钥密码体制电子商务的关键部件。