The loom is controlled by a system of stiff punch cards and hooks.

织布机的控制装置由硬打孔卡和吊钩组成。

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Further complication - lower immune system, bacterial infection, stiff joints, arthritis, lower productivity, and lower nutritional status of their family.

进一步恶化-降低免疫系统，细菌传染，僵硬的关节，关节炎，更低的生产力，和家庭的营养状态降低。

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For soft beam-stiff half space system, wave speeds in beams are also critical velocities.

对软梁-硬半空间系统，梁的剪切波速和压缩波速也是临界速度；

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Detroit would pose a stiff test for Michigan's emergency-manager system, a controversial tool for municipal overhaul that hasn't had many successes yet.

WSJ: Governor to Appoint Financial Overseer for Detroit

Unlike the stiff Federal Sentencing Guidelines, state prisons offer a parole system that lets inmates return to society based on their behavior in prison and their likelihood of returning to society as a better citizen.

FORBES: Dennis Kozlowski, Won't You Be My Neighbor?

The unpleasant feedback from exercising, such as difficulty breathing, sweating or stiff muscles, is transferred to the brain using the afferent, or sensory, nervous system.

WSJ: Optimal Music for the Gym