结论：交变负荷力量训练法能有效地提高肌肉力量训练的效果。
Conclusion: It was suggested that the alternating load strength training could obviously effectively improve the effects of the muscular strength.
高频疲劳试验机属于金属材料试验机，是一种主要用于测定金属及其合金材料在室温状态下的拉伸、压缩或拉压交变负荷的疲劳性能试验的机器。
High-frequency fatigue tester, which belongs to metal material tester, is used to measure the fatigue performance of drawing, compressing of metal material and its alloy in room temperature condition.
由于对角舷外架不仅支撑起重机抵抗侧向力，而且也包括交变的前后力，这两台起重机可以在一个更宽的角幅度之上举起额定的负荷。
Because the diagonal outriggers brace the crane not only against side-to-side forces, but also front-to-back turning forces, these two cranes can lift the full rated load over a wider Angle.
由于对角舷外架不仅支撑起重机抵抗侧向力，而且也包括交变的前后力，这两台起重机可以在一个更宽的角幅度之上举起额定的负荷。
Because the diagonal outriggers brace the crane not only against side-to-side forces, but also front-to-back turning forces, these two cranes can lift the full rated load over a wider Angle.
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