Winter wheat plants are prone to spring frost injury once strong cold air invades.
小麦拔节后抗寒力迅速减弱,遇强冷空气侵入会发生霜害.
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In the mornings, the fields white with frost and the swamps were already freezing.
每在早晨, 田野上老是白蒙蒙的一片霜,沼泽已经开始结了冰.
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通过掺加UEA膨胀剂、TQⅢ大体积混凝土防冻泵送剂,并采用暖棚法对大体积混凝土进行了温度控制,防止了大体积混凝土的冻害和裂缝的产生。
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The causes of frost boil road formation in northern region and the preventions
浅谈北方地区道路翻浆的成因及防治
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特别是在一清早,被大车轧起的土棱上镶着几条霜边,小风尖溜溜的把早霞吹散,露出极高极蓝极爽快的天;
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