Torque is the measure of a twisting or rotating force that can move something, like a wheel, around an axis.
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They had been living and working aboard the ISS since August and were expected to stay until February. The crew returned on January 15, which was a decision made by NASA's chief health and medical officer. Once the crew had landed, administrator Jared Isaacman said it was a "serious situation" but didn't go into any detail.
中国团队不仅带来了机器设备,更带来了适配的技术方案:用旋耕机替代老式圆盘犁,让水田更平整,利于管理;引入高效的移动水泵,确保了旱季灌溉无忧;建立了农机维护体系,让这些现代化机械能持续为农场效力。
While the rocket is inside, technicians will remove and inspect suspected helium system components, update any faulty hardware, and perform other work. That includes replacing batteries in the flight termination system — the emergency system that can destroy the rocket if it strays off course — swapping out a seal on the line that feeds liquid oxygen into the rocket, refreshing items inside Orion, and giving the closeout crew more practice sealing the capsule.