Refiners chugging along at a low utilization rate of about 80 %.炼油厂仍维持着80%左右的低开工率.What other nationality is chugging around in the South China Sea?还有哪国船只在南中国海突突突地开来开去?There in a department - store window were two electri...
They placed very stable and accurate atomic clocks on regularly scheduled jet airliners.他们将非常稳定、准确的原子钟装在定期飞行的喷气式班机上.The flier flew a new - type jet plane.飞行员驾驶一架新式喷气机.It is becoming accepted practice that jet aircraft mu...