Specific of course issue gets concrete analysis to just go, here just cites a case.
当然具体问题得具体分析才行，这里只是举个例子。
Merchandise concrete has been widely used, but its quality control is a key issue.
商品混凝土已广泛应用，如何控制质量是关键。
Merchandise concrete has been widely used, but its quality control is a key issue.
商品混凝土已广泛应用，如何控制质量是关键。
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