A designer must have a good foundation in statics, kinematics, dynamics and strength of materials.

一个设计人员必须在静力学 、 运动学 、 动力学和材料力学这四个方面有良好的基础.

Bricklayers have an intimate knowledge of the strength of materials.

砖瓦匠对材料强度有很多经验知识。