medium power vacuum-tube  中功率真空管

Medium-wall steel tube  中厚壁钢管

welding of medium-diameter thin-walled tube  中径薄壁筒焊接

medium medium moisture  基质湿度

recessed tube-tube sheet  管子内缩管板

Tube-Tube Electrode  管-管电极

Tube-Tube Plate Welding  管子管板焊接

Tube-Tube Sheet  管－管板

test tube test tube brush test tube holder test tube rack  试管

medium temperature and medium pressure  中温中压

medium-temperature medium-pressure  中温中压

the water medium and oil medium  水和油介质

modified Frey medium and mycoplamas medium  改良Frey培养基和支原体培养基

connection of tube and tube sheet  管子与管板的连接

double tube double tube-plate heat exchanger  双管双管板换热器

Framed tube supported on frames-core tube  框支框筒

gas tube (=gas-filled tube)  充气管

Heat Exchange Tube and Tube Sheet  换热管与管板

integrated tube-box shell-and-tube heat exchanger  集成管箱型管壳式换热器