strength各种词性变化:strong,strongly。
例句1.They had to check the strength of the seat attachments to the floor of the plane.他们需要检查座椅与飞机舱面固定接头的强度。
2.Certain materials can be manufactured with a high tensile strength.有些材料可以制造成抗拉强度大的产品。
3.Its oscillation depends on the strength of the gravitational field它的振动幅度取决于引力场的强度。