vacuum flask मीनिंग इन हिंदी

संज्ञा • निर्वात बोतल • निर्वात फ़्लास्क

vacuum: निर्वात शून्य
flask: बारूददान बोतल

अधिक: आगे

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

संज्ञा.

flask with double walls separated by vacuum; used to maintain substances at high or low temperatures
पर्याय: vacuum bottle