You should ensure against loss of heat by having double glazing.

你应装双层玻璃以免散热.

《简明英汉词典》

You should ensure against yourself loss of heat by having double glazing.

你应装双层玻璃以防止散热.

辞典例句

You must take all reasonable precautions to ensure against theft.

你必须采取一切合理的预防措施来防盗.

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They must take steps to ensure against possible failure.

他们必须采取步骤以免遭受可能的失败.

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The loss of all his belongings rammed home the need to ensure against fire and theft.

他所有财产的丧失充分说明防火防盗保险的必要性.

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You must also ensure against counterattack and surprise fire, and select firing positions and spot targets.

你还必须要保证能对付敌人的阻击和暗处的冷枪, 为部队选择合适的射击位置并及时发现敌方目标.

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