The Hidden Role of Titanium in Your Eyeglasses and Bicycles

课文

1. Titanium is stronger than steel but nearly half as heavy, making it ideal for wearable gear.

   钛比钢更坚固，重量却几乎只有其一半，是可穿戴装备的理想材料。

2. Its resistance to corrosion means titanium frames won’t rust near sweat or sea air.

   钛耐腐蚀，因此钛制镜架在汗液或海风环境中不会生锈。

3. Unlike aluminum or plastic, titanium bends without breaking—a key safety feature in bikes.

   与铝或塑料不同，钛受力弯曲但不易断裂，这是自行车的关键安全特性。

4. Manufacturers alloy it with small amounts of aluminum or vanadium to fine-tune flexibility.

   制造商通过添加少量铝或钒制成合金，以精确调节其柔韧性。

5. Though more expensive, its durability cuts long-term replacement costs for eyewear users.

   尽管价格更高，但其耐用性降低了眼镜用户的长期更换成本。

6. Recycling titanium is energy-intensive, so engineers design parts for extended reuse instead.

   钛回收能耗高，因此工程师设计部件时注重延长重复使用周期。

7. Material scientists continue testing new titanium composites that balance strength, weight, and cost.

   材料科学家持续测试新型钛复合材料，以平衡强度、重量与成本。

8. This metal quietly supports human mobility—from vision correction to urban commuting.

   这种金属默默支撑着人类的移动需求——从视力矫正到城市通勤。