semi-refined paraffin wax

例句：

1. 1.The candle was made from semi-refined paraffin wax.
   蜡烛是用半精炼石蜡制成的。
2. 2.The company uses a mixture of semi-refined paraffin wax and vegetable oil in its products.
   该公司在其产品中使用了半精炼石蜡和植物油的混合物。
3. 3. The wax is used to seal the packaging, protecting it from moisture and dust.
   这种蜡用于密封包装，防止水分和灰尘的侵蚀。