去年冬天，在欧洲寒冷地区冬季极端的天气环境下，真空管集热器的热管出现了重大的结冻问题，此问题出现后，真空管集热器和防冻保护重新成为了关注的重点。
Tubular solar collectors and freeze protection has come back into focus after significant failures of heat pipes in the colder parts of Europe during extreme winter conditions.
去年冬天，在欧洲寒冷地区冬季极端的天气环境下，真空管集热器的热管出现了重大的结冻问题，此问题出现后，真空管集热器和防冻保护重新成为了关注的重点。
Tubular solar collectors and freeze protection has come back into focus after significant failures of heat pipes in the colder parts of Europe during extreme winter conditions.
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