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  1. 1. The wrapping aluminium foils help slows downevaporation from the food. ...

  2. ... kinetic energy of the parachutist then remains constant. 2. The bubble wraps act like a cushion. They absorb shocks and vibrations, thus...

  3. ... they bought. Tear these bags into sheets and wrap a cup by these sheets, including th cover (the lid) and the bottom...

  4. The operation of the Hubble telescope requires a optimum temperature. Wrapping the telescope with shiny covering would reduce heat absorption and thus help to maintain a steady temperature of the telescope.

  5. 1) The Glass wall of the bulb should be designed by wrapping with metal,since metal is a good conductor. 2) The division of the seperation should be more seperately.

  6. ...supply,immersion heater,thermometer. Wrap the object with cottol wool,put the thermometer inside the object.Weight the mass...

  7. ... absorbed. A wet-bulb thermometer has a piece of cotton wrapped around the temperature sensitive region of the thermometer (this is the mercury bulb in...

  8. ...through the wire, the stronger the field. If the coil of wire is wrapped around a material with no special magnetic properties (i.e., cardboard), it will tend...

  9. Well, one of the way is to use egg! You can boil an egg till it is hard, put some tissue and wraps it. It will be a perfect hand warmer! 2010-04-19 09:24:18 補充: you can eat it afterward...

  10. ...thus the calculated value is greater than the actual value. (c) Wrap the metal block by cotton wool so as to reduce the heat loss to the surroundings...