名词
中文翻译：前煅烧
同义词：
['previous firing', 'previous heating']
例句：
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1. The previous calcining processwas crucial to the success of the experiment.
之前的煅烧过程对于实验的成功至关重要。
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2.During the previous calcining stage,the temperature should be carefully controlled.
在之前的煅烧阶段，温度应该小心控制。
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3.The previous calcining step is essentialfor achieving optimal results in the final product.
之前的煅烧步骤对于获得最终产品的最佳结果至关重要。