weathered pebble
常見例句
- For the frozen weathered bedrock, sandy gravel and pebble bed, it is more suitable to use drilling and blasting method than to use the frozen soil excavator.
對凍結(jié)風化基巖、砂礫層或卵石層，凍土挖掘機效率低，宜采用鉆眼爆破法，采用抓巖機裝載凍土。 返回 weathered pebble