acetylene series

例句：

1. 1. This new product is a significant improvement over the previous model.
   这款新产品在性能上比之前的模型有显著的提升。
2. 2. The acetylene series has been widely used in industrial processes.
   乙炔系列在工业过程中得到了广泛的应用。
3. 3. The acetylene series is known for its high efficiency and durability.
   乙炔系列以其高效率和耐用性而闻名。