主要用作橡胶制品的补强剂和填充剂，能明显改善橡胶制品的抗拉强度、抗撕裂性和耐磨性。
It is mainly used as rubber reinforcement and filler, to improve their elongation, tear strength and resistance to abrasion.
当箱型臂截面设计合理且在危险截面处实施局部补强后，可使臂架具有良好的刚度，强度，振动稳定性。
When the box section design boom and a reasonable cross-section are put in danger of partial reinforcement, the arm can have good stiffness, strength, vibration stability.
混凝土偏心受压构件，尤其是偏心受压对称配筋柱，强度不满足要求时，可用双面围套加以补强。
In case of insufficient strength in reinforced concrete eccentric compression members, especially of symmetric reinforced eccentric compression column, double encircling can be used for strengthening.
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