manometer

n instrument for measuring pressure in gases and liquids （流体的）压力计, 压力表.

manipulation, manipulative, manipulator, mankind, manliness, manly, manna, manned, mannequin, manner, mannered, mannerism, manners, mannish, mannishly, mannishness, manoeuvrability (US maneuverability), manoeuvrable (US maneuverable), manoeuvre, manoeuvre (US maneuver), manor, manorial, manpower, manque, mansard, manse, manservant, mansion, manslaughter, mantel, mantelpiece, mantilla, mantis, mantle, mantrap, manual, manually, manufacture, manufactured, manufacturer,