derrick

Tháp khoan dầu, giàn khoan

a large structure used for drilling and producing oil or gas from the sea floor

• oil rig

Collocations offshore derrick · drilling derrick

• The company has built a new derrick off the coast.

  Công ty đã xây dựng giàn khoan mới ngoài khơi.

Cầu trục, cần cẩu

a tall structure used for lifting and moving heavy objects, especially in construction sites

• construction crane

Collocations tower derrick · lifting derrick

• The workers are using a derrick to lift the steel beams.

  Nhân viên đang sử dụng cần cẩu để nâng các thanh thép.