vacuum flask sentence in Hindi

Examples

1. A removable pot, with handle and lid, fits inside the vacuum flask.
2. The now-famous vacuum flask was invented by Sir James Dewar in 1892.
3. The vacuum flask prevents the water from going up the B�chner flask.
4. The guampas and leather-covered vacuum flasks are often personalized with names or logos.
5. Dewer's first vacuum flask in 1892 had a silvery mercury coating.
6. Thermos bottles are smaller vacuum flasks fitted in a protective casing.
7. A vacuum cooker ( ) is a stainless steel vacuum flask.
8. The vacuum flask consists of two cork or polyethylene plastic.
9. Vacuum flasks, or Dewars, are silvered to approach this ideal.
10. The Thermos, a vacuum flask adapted for lunch box use, was introduced in 1904.