铝合金的高强度重量比使其成为汽车制造的理想材料。

Aluminum alloy has a high ___strength-to-weight ratio, making it perfect for car manufacturing.

这种新型材料因其出色的强度重量比而广泛应用于航空航天领域。

This new material is widely used in aerospace due to its excellent ___strength-to-weight ratio.