pinion steel
基本释义
齿轮钢
实用场景例句
学术讨论
The plumb line is used in construction to ensure vertical alignment of structures.
铅锤在建筑中被用于确保结构的垂直对齐。
The plumb bob's precise measurement is crucial for surveying and engineering projects.
铅锤的精确测量对于测量和工程项目至关重要。
校园生活
During the physics experiment, the plumb line helped determine the true vertical.
在物理实验中，铅锤帮助确定了真正的垂直线。
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