先是用碾子上铸铁的轴当砧子，后来用铁道轨当砧子。
First, on the cast iron shaft with a roller when the anvil, then use the railroad tracks when anvil.
介绍了代县碾子沟矿区金红石矿产的地质特征，就代县碾子沟矿区金红石矿的成矿原因进行了分析。
Introduce the geological features of rutile mineral in Nianzigou, Dai county, and analyze the reason of the rutile's formation in this mining area.
利用整治线宽度确定的统一公式，以碾子湾、陆溪口及武桥水道为例，分别计算了各水道的整治线宽度。
The regulation widths of the Nianziwan waterway, Luxikou waterway and Wuqiao waterway are respectively calculated by using the unified formula for the regulation width.
他们将把这个石碾子移交给代表美国大使馆、代表成都美国总领馆、代表美国空军博物馆和中美航空历史基金会的我们。
They are turning it over to us, representing the United States Embassy, the U. S. Air Force Museum, and the Sino-American Aviation History Foundation.
如果没一锤都会打断它，每一个熔炉都会烧毁它，每一个碾子都会粉碎它，那它还有什么用呢？他应该具有能经受住一切考验的优点和品质。
Will break it if you don't have a hammer, every furnace burning it, every stone roller crush it, it still have what use? He should be able to withstand all the test strengths and qualities.
如果没一锤都会打断它，每一个熔炉都会烧毁它，每一个碾子都会粉碎它，那它还有什么用呢？他应该具有能经受住一切考验的优点和品质。
Will break it if you don't have a hammer, every furnace burning it, every stone roller crush it, it still have what use? He should be able to withstand all the test strengths and qualities.
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