oil derrick短语¹⁰⁶¹⁰⁰⁺⁵ 基本例句 n.开凿油井时用的钻油塔;井架 An oil derrick showered silver confetti on the whooping crowd. 竖起的油井架向欢呼的人群中喷洒着银色的纸屑。 topsage During the manufacture of oil derrick, such factors as welding defects, deforming and cold crack have key effect on the oil derrick quality. 在井架的制造过程中，焊接缺陷、焊接变形和焊接冷裂纹是影响井架质量的关键因素。 lib.swpu.edu.cn