That’s why trains have a trick called slack action. If you've ever been near a train as it starts moving, you probably heard a bunch of cracking that moves down the line of cars. The reason is that the connection from one car to the next is loose. So when the locomotive pulls the first car, the second car remains stationary until the slack is gone. With this trick, the locomotive can get one car moving at a time and add it to the group of moving cars. Pretty smart!
Ваше мнение? Поделитесь оценкой!
，详情可参考搜狗输入法
This transcends, contrary to common perception, mere gullibility regarding relationship complaints. We differ less than we might prefer. Indeed, Weizenbaum references professional psychiatrists declaring the program their field's future, with even Carl Sagan envisioning computerized therapy administration. Nobody remains immune to the ELIZA phenomenon!
2 апреля 2026, 13:38События дня