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(duì)凍結(jié)風(fēng)化基巖、砂礫層或卵石層，凍土挖掘機(jī)傚率低，宜採(cǎi)用鑽眼爆破法，採(cǎi)用抓巖機(jī)裝載凍土。 返回 weathered pebble