上层土 meaning in Chinese
topsoil
upper horizon soil
upper layer of soil
Examples
- Standard guide for use of rotary kiln produced expanded shale , clay or slate as a mineral amendment in topsoil used for landscaping and related purposes
园林设计及其有关用途的作为上层土中改良矿物质用旋转窑生产的空心油岩粘土或石片的使用标准指南