bowlder

1. Boulder: also bowlder, a large rounded mass of rock lying on the surface of the ground or embedded in the soil.
   巨砾，圆石：在地表上或埋在土壤中的大而圆的岩石块些美国现代作曲家。
2. He hid behind a great bowlder and fell to listening.
   他躲在一块大圆石后面，静静地听着。
3. The large bowlder surface of dinner table must be uplifted vertically in avoidance of breakage. The small one shall also be held vertically instead of horizontally.
   大面积的餐台玉石面，必须竖抬，避免餐台断裂。小面积的玉石面也应竖拿，切忌平面横抬横拿。
4. Fu Chun white bowlder snail develop graduate academe.
   福春白玉蜗牛开发研究所。
5. It uses the technology of computer laser to carve in the jade or bowlder.
   利用电脑激光调刻技术，可以在各种玉石上进和字体和图案设计。
6. Investigation on occupational health status in bowlder processing industries in a city
   某市玉石加工行业职业卫生调查

noun

1. a large smooth mass of rock detached from its place of origin

   Synonym:    boulder