砂礦采選 的英文怎麼說
中文拼音 [shākuàngcǎixuǎn]
砂礦采選
英文
alluvial working-
" dug jade " ing, this exploitation and d s placer means have already stopped, only while quarrying and drawing gold dust, electing the jade one from the gravel that is dug out, in passing, output is very few
「挖玉」這一開采和闐砂礦的手段已經停止，只在采掏砂金的同時，從挖出的礫石中順帶選出玉塊，產量微乎其微。Odium silicate is used as adhesive in metal casting, fireproof material, paper board, electric welding material, crt screen ; as water purifying agent, scale remover ; as washing aid. buffer in detergent ; as sealant in oil drilling ; as ore flotation agent, slurry thinner and leakage - blocking material in mining ; as bleacher aid, mordant, sizing material, impregnating agent in textile dye & printing ; as anti - corrosion agent and insecticide in wood processing ; as basic ingredient for coatings
硅酸鈉被大量地用於製造工業作為填充劑，在金屬澆鑄中作為砂型粘結劑，版紙工業中被用作膠合劑，在耐火材料行業中用作粘結劑，在電焊條行業也用作粘結劑，在電子工業中可用作顯像管成屏的粘結劑，在水處理中用作處理劑，防結垢劑等。在合成洗滌劑行業中用作助劑，在清洗劑行業中用作清洗及防腐緩沖劑，在石油開采中用作防止井噴材料，在礦山開發中用作堵漏材料、礦石浮選劑和泥漿稀釋劑等。
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