I. Analyze the features of the following passages. (1) First, a long glass tube was taken. The tube was closed at the top and was then completely filled with water. Next it was placed vertically in a large barrel half-full of water. When the bottom of the tube was opened, the water level in the tube fell to a height of approximately 10 meters above the water level in the barrel. As a result, a vacuum was left in the upper part of the tube. The water in the tube was supported by the atmospheric pressure. The height of the column of water could therefore be used to measure atmospheric pressure. ( 2 ) Many parts of this machine are made of flammable plastic. Never place hot or burning objects on or near the washing machine. When disconnecting the power cord from the power outlet, always take hold of the plug, and not the wire, and pull free. Never connect or disconnect the power plug with wet hands since you may receive an electric shock. For really dirty clothing use hot water 40 °C . For removal of blood stains use cold water only. STAIN REMOVAL AND BLEACHING · Add 1/2 cap per liter of water. · Soak laundry well in solution for at least 20-30 minutes and wash. · Rinse thoroughly. Power source: 220V/50Hz Power consumption: 400W Washing capacity: 3kg Spin capacity: 3kg Water supply pressure: 0.3kg/cm2 – 10kg/cm2 Net weight: 30kg Dimension: 500×500×850mm