VCRabbr.录像机（=Video Cassette Recorder）abbr.可变压缩比（=Variable Compression Ratio）

1. The cored wire injection process was used to produce vermicular cast iron.
   应用喂丝工艺生产蠕墨铸铁。
2. This paper describes the character of vermicular cast iron pipe and the use of it in the sub-high pressure town gas pipeline.
   本文重点阐述蠕墨铸铁管的性能和用于城市次高压煤气管网的可行性。