effective modulus

例句：

1. 1. The engineer used the effective modulus to optimize the design.
   工程师利用有效模数优化了设计。
2. 2. The company's performance was significantly improved with the effective modulus in place.
   公司的业绩因有效模数的到位而显著提高。
3. 3.The new policy has a significant impact on our effective modulus.
   新政策对我们的有效模数产生了重大影响。