On the afternoon of May 20, Hangzhou Petrochemical Industry Association was formally established. Shen Jian, the standing member of the municipal party committee and deputy mayor, emphasized at the inaugural ceremony that the petrochemical association must have vitality and that it must be supported by the enterprises. The key is to serve members, resolve membership difficulties, build a bridge between members and the government, and become members and The bond between the government.
Shen Jian expressed his congratulations on the establishment of the association at the ceremony and expressed heartfelt gratitude to the enterprises and provincial and municipal competent authorities for their hard work. He pointed out that Hangzhou's chemical industry accounts for about 10% of Hangzhou's overall industrial industry, and it also has a number of highly competitive chemical companies. To achieve a healthy, stable, and sustainable development of the industrial economy, it is necessary to develop chemical industry. The development of Hangzhou's chemical industry must be based on Hangzhou's urban regional planning, and the chemical industry site must be strictly assessed for the environment. Shen Jian emphasized that the development of the chemical industry in Hangzhou should be based on scientific and technological innovation, improve the quality of workers, and strengthen management as the starting point. We must take the lead in transforming development and take the green eco-environmental protection line.
A vacuum flask (also known as a Dewar flask, Dewar bottle or thermos) is an insulating storage vessel that greatly lengthens the time over which its contents remain hotter or cooler than the flask's surroundings. Invented by Sir James Dewar in 1892, the vacuum flask consists of two flasks, placed one within the other and joined at the neck. The gap between the two flasks is partially evacuated of air, creating a near-vacuum which significantly reduces heat transfer by conduction or convection.
Vacuum flasks are used domestically to keep beverages hot or cold for extended periods of time and for many purposes in industry.
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