碲化镉是一种比硅更便宜的光伏材料。
The compound is cheaper to use for photovoltaic material than silicon.
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直拉法生长单晶硅是目前最常用最成熟的工业化方法。
Growth of Czochralski silicon crystals is the most common and perfect one in industry.
硅化和粘土化是更为直接的成矿作用。
The float is a direct acting float switch.
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