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Preface
Driven by good- macro-environment of the rapid and continuous development of the national economy , our country 's petroleum & chemical industry has been taking on a persistent and swift growth . Tower equipments which are matched with the industry ,constantly pullulate in a big way and in a high degree way , tower height is so far up to 100 meters . Especially , with the rapid development of , in recent years , our country ' s one million tons of ethylene , the propylene rectification tower has its net weight of more than 800 tons with its height of 120 meters . So, its hoisting will be the issue for us to have to research .
关键词·keyword)
丙稀精馏塔 : propylene rectification tower
吊装 ; hoisting
1350吨吊车: (分两种清况翻译）
（a) 自重为1350吨的吊车：crane with its weight of 1350 tons
(b) 能吊起1350吨重物的吊车：crane with ability of hoisting 1350 tons
吊耳： lifting lug
平衡量: equilibrium amount
(严格按桐渣游照原文，且按照英语语梁基法和书写习惯精局销心翻译，加上参考科技词典用词，更确保质量）