coarse silt

基本解釋

These may range from coarse silt to sand or pebble size.
這些顆粒的大小變化范圍，從粗粉砂級(jí)到砂級(jí)或細(xì)砂級(jí)。
dict.cn
Although silt is prevalent in tidal-flat deposits, it is coarse and fine tails that change sharply in their percentages after sedimentary dynamic variations.
潮坪沉積物以粉砂為主，但敏感地反映沉積動(dòng)力變化的卻是粗、細(xì)尾部分。
Hydraulic hoist of solid coarse particles in the vertical pipe is used in oil extraction, chemical engineering, ocean mining, coal mining and silt cleanup and so on.
固體粗顆粒物料的垂直管水力提升常見(jiàn)于石油開(kāi)采、化工反應(yīng)、深海采礦、水力采煤、河湖清淤等工程場(chǎng)合。