起重機的英文：
1.a hoist; a crane; a derrick; a carriage hoist

hoist是什么意思：
v. （使）升起；吊起
n. 升起；吊起；推，托，举；起重机

They hoisted the flag.
他们升起了旗。

Concret was raised by a hoist.
混凝土由升降机提升。

crane:To hoist or move with or as if with a crane.

crane是什么意思：
n. 鹤；起重机，吊车
v. 伸着脖子（看）；用起重机起吊

crane:To hoist or move with or as if with a crane.

range crane fly
牧场大蚊

Scotch derrick crane
苏格兰式人字起重机

derrick是什么意思：
n. 起重机,小偷

Scotch derrick crane
苏格兰式人字起重机

Lofty derricks dot the landscape in an oil field.
高耸的井架点缀着油田的景色。

A guy running from the peak of a gaff or derrick to the deck.
科桁支索从桅上斜杆或摇臂吊杆的顶端拉到甲板上的牵索