Siltoun.锡尔图(在乍得；东经 15º33' 北纬 16º46')siltn.淤泥v.(使)淤塞silt beach instrument van淤泥海滩仪器车silt coal loading machine淤煤装载机siltation of canal system渠系淤积silt diffusion coefficient泥沙扩散系数siltized intercalation bed泥化夹层Siltation downstream of dam坝下淤积silt river in mountain land山区多泥沙河流siltation promotion project促淤工程silt depositional efficiency沉沙效率siltation of coastal harbour海港淤积