Question

请英语高手帮忙翻译几句话，谢谢！

resistors are not tested and guaranteed in cycling conditions

This range has been developed specifically for electrical traction applications and is capable of dissipating 500 W at + 70 °C. The remarkable performance characteristics are evident when used in severe pulse conditions. The copper base allows easy mounting on the heatsink and provides optimal dissipation conditions.

Answer 1

resistors are not tested and guaranteed in cycling conditions

This range has been developed specifically for electrical traction applications and is capable of dissipating 500 W at + 70 °C. The remarkable performance characteristics are evident when used in severe pulse conditions. The copper base allows easy mounting on the heatsink and provides optimal dissipation conditions.

在通电情况下，不对电阻器进行测试，不质保。
这方面特意为电牵引应用而进行了改进，并且能散70度500w的热。当用在苛刻的脉冲条件下时，非凡的性能尤其明显。铜芯更易积聚热量，并且散热条件最佳。

Answer 2

在循环的情况下，（这个电器的）电阻值没有经过测试，也没有任何承诺。

这个范围是特别为电子牵引设备设计的，能够在70摄氏度下散发500瓦的功率。当初与变化非常大的环境中时，其性能特征会表现得尤为显著。铜制基座使其很容易安装到散热槽上，并且提供最佳的散热性能。