... [sled] 一种状如雪橇的冰上滑行工具,用竿子撑或人畜力推拉前进 [freezing point] 水的凝固点 [ice lantern] 用冰做成的各种形状和颜色的灯,内装电灯或蜡烛 ...
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那是17世纪，牛顿确定水的凝固点之前。
It was the seventeenth century before Newton determined the freezing point of water.
物质（通常是盐和水）在水的凝固点以下形成的混合物。
The flux is generally an organic salt dissolved in water and alcohol mixture.
如果表面被冷却到水的凝固点以下，浓缩的水蒸汽会凝固成冰。
If the surfaces are chilled below water's freezing point, the condensed moisture can solidify into ice.
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