土精，汉语词汇，拼音是tǔ jīng，意思是指土星或人参。
白土精制 clay refining ; Clay treating
稀土精矿 rare earth ore concentrate ; rare earth concentrate
松土精 Grondverbeteraar ; SOILFIX IR
白土精制油 clay-filtered oil
硅藻土精过滤 polishing diatomaceous filtration
唤土精灵 Summon Earth Elemental
稀土精密抛光粉 Precise Polishing Powder
白土精制过程 clay treating process
稀土精矿渣 refined RE ore slag
包头稀土精矿 baotou rare earth concentrate
由于回避土精俗语和寻找恰当的字眼，马丁说话放慢了速度，这能使他便于找到心中最好的想法。
In his avoidance of slang and his search after right words, Martin was compelled to talk slowly, which enabled him to find the best thoughts that were in him.
采用硅藻原土代替硅藻精土作为微生物载体处理城镇污水具有较好的处理效果。
The feasibility of using raw diatomaceous earth(DE)instead of refined DE as microbial carrier to treat municipal wastewater was investigated.
硅藻精土作为一种新型沥青改性材料，掺配在沥青混凝土中，可以改善沥青混合料的物理力学性能，提高路面工程质量。
As a new type modified asphalt material, mixed with asphalt concrete, diatomite can improve mechanical performance and enhance the quality of pavement engineering.
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