They can rock and roll, they can tango, but they can't bop.他们会跳摇滚，会跳探戈，就是不会跳博普舞。When the bit goes through the BOP, slow down, please!当钻头通过防喷器时, 慢一点放.Stack the risers on the rack with the BOP crane.防喷器吊车将隔水管排入管架内....
He is currently standing trial for alleged malpractices.他被指控营私舞弊，正在受审。Various malpractices by police officers were brought to light by the enquiry.警察的各种不法行为经调查已揭露出来.Now there are many malpractices in the native insurance...
The orbits of planets in the once popular geocentric Ptolemaic system are epitrochoids.曾经盛行的托勒密地心说体系里的行星轨道就是外旋轮线.Mars and Earth have orbits which change with time...火星与地球的运行轨道随着时间而变化。Other enumeration problems lead us to...