1·In 1957, the last of New York's electric trolleys completed its final run from Queens to Manhattan.
1957年，纽约的电动车最后完成了从皇后区到曼哈顿的最后运行。
2·Metallurgical hoist, electric hoist, chain hoist, chain hoists, trolleys, grab, electric flat car, lifting electromagnet, hand hoist, sling, Jack, hoist, bearing.
电动葫芦，冶金葫芦，环链葫芦，手拉葫芦，单轨小车，抓斗，电动平车，起重电磁铁，手扳葫芦，吊索具，千斤顶，卷扬机，轴承。