1. Only one counterforce was available, and that was you, Uncle Sam. 只有一种反作用力，那就是你，山姆大叔。
2. They represent a very moving counterforce to the legions of young people Obama has activated across the country. 她们代表了一股与奥巴马在全国调动起来的青年大军相左的活性对抗力量。
3. The testing device, which realizes the measurement of contactors mechanism and counterforce characteristics, is designed. 本文针对接触器机械结构特点，设计了机械特性参数及其电磁机构反力特性测试装置。
4. The counterforce size of rotaty water jet and ordinary is a key which influence the propulsion of the self-propelled water jet. 旋转射流与普通射流的反冲力的大小是影响自进式水射流系统自进力大小的关键。
5. It is worked out for monitor interface based on computer, which can store testing parameters and counterforce characteristics curve. 通过编制上位机监控界面，本装置除实现特性参数检测外，还具备反力特性曲线显示与反力特性存储的功能。
