The water temperature in the tube has been kept at 95 × for 6000 hrs while the pressure in the vacuum jacket was lower than 5 × 10-5 Torr, it may be considered that the collector tube has long vacuum life time.

  • 集热管内水温保持在95℃,经6000小时后真空套管中压强仍低于5×10~(-5)托,表明本集热管有长的真空寿命。

  • 互联网 2025-03-09 10:27:30

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