The aircraft is powered by three jet engines.这架飞机由三台喷气发动机驱动。Now, volunteers are designing a palo - powerd pedal - powered grain crusher.现在, 志愿者正在设计脚踏谷物碾磨机.Muscle contractions are powered by the chemical adenosine triphos...
在有限的标准品范围内,吸光度呈现线性.The response observed will be linear over a limited range of standards.最后,根据工作曲线将吸光度转换成蒽醌浓度.Then the absorbance is calculated as concentration of AQ from working curve.注:制备接种体的吸光度和透光率.NOTE — Either abs...
CFCs cause depletion of atmospheric ozone.氟氯化碳会损耗大气臭氧.The pressure distributions of the circumfluent cyclone system CFCS are studied experimentally in detail.测定了环流循环除尘系统内的静压分布....the Montreal Protocol to phase out use an...