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- fine surface mulch of gravel 细砾薄表层
- We bought six bags of gravel for the garden path. 我们购买了六袋碎石用来铺花园的小路。
- The car drew up with a crunch of gravel. 那辆汽车在沙砾路上嘎吱一声停了下来。
- Detritus usually consists of gravel, sand and clay. 岩屑通常是由砂砾、沙和粘土组成的。
- The driveway was made out of gravel. 这条车道由砾石铺成。
- A lonely fisherman stood on a tuft of gravel. 一个孤单的渔夫站在碎石丛中。
- Concrete is a mix of gravel, sand, Portland cement and water. 混凝土混合砾石、沙子、水泥和水。
- Put half an inch of gravel or crushed stone inside the holes. 把一半碎石或砾石一寸内洞。
- Certainly wants the grain to raise, reduces the polished rice fine surface, must coordinate suitably. 一定要五谷为养，减少精米精面，要适当地配合。
- The truck dumped two loads of gravel on the driveway. 卡车把两卡车砾石倾倒在车道口。
- For form grinding, precision grinding of cutters, measuring tools, instrument parts, thread grinding and fine surface finish grinding. 适用于成型磨削,刀具,量具,螺纹工件、仪表零件的精密磨削,及其它各种高光洁度的表面加工。
- Li Xiaoyan, Liu Lianyou, Gong Jiadong, Wang Jianhua. Influence of Gravel Mulch on Soil Erosion by Wind and Trapping Capacity of Windblown Sediment. Journal of Arid Environments (accepted). 刘连友，王建华，王小雁等，耕作土壤可蚀性颗粒风洞模拟测定，科学通报，1998，43（15）。
- He picked up a good-sized piece of gravel and started to wind-up. 他捡起一块相当大的石子，开始拉紧橡皮带。
- FF(Flush out,Fine surface) machining is an advanced manufacture technology which can greatly shorten the manufacturing cycle and improve the efficiency. 高速加工是一种先进制造技术，它可以大大缩短制造周期，提高生产效率；
- He reached under the table and pulled out a bucket of gravel. 他把手伸到桌子底下拿出一桶碎石。
- Abstract： FF(Flush out,Fine surface) machining is an advanced manufacture technology which can greatly shorten the manufacturing cycle and improve the efficiency. 摘 要： 高速加工是一种先进制造技术，它可以大大缩短制造周期，提高生产效率；
- A thick mulch of some organic material also keeps the soil cool in summer while adding humus to the soil. 厚地膜的一些有机物质;也可使土壤清凉夏曰;而加入到腐殖质土壤.
- The road was full of gravel and very bumpy. I almost stumbled. 路上净是石头子儿，疙疙瘩瘩的，差点绊倒。
- Stress can be the undoing of so many fine players. 紧张可能是这许多优秀选手失败的原因。
- The pavement was thick with the slippery brown mulch of fallen leaves and the smell of bonfires wafted across the common. 人行道上铺了厚厚的一层褐色的落叶，篝火的气味飘送过那块公地。
