The crust on the snow was thick enough for us to walk on it.
雪面够厚, 我们可以在上面行走。
The crust on the snow was thick enough for us to walk on it.
雪面够厚, 我们可以在上面行走。
In this paper, the mathematical model of the reltion between water saturation vapor pressure and saturated temperature is established in the form of monoacidic polynomials.
提出了一元多项式形式水蒸气饱和压力与饱和温度关系数学模型，进行了牛肉过程计算机模
，在此基础上进行了牛肉过程中干耗量数值计算。
Suitable parameters of perimeter blasting were obtained with good results.In the final, the paper discussed the blasting mechanism of the frozen soil and the blastin...
通过试验获得了较好效果下周边爆破适宜参数,并对土爆破机理和爆破对
影响问题进行了探讨。
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