采用這項技術可以從礦石浸出液制備釔富集物.The mentioned technology can be used for producing yttrium concentrate from ore leaching liquor.針對地浸礦山潛水泵提升浸出液的特點,研制了車載式電動提放潛水泵裝置.The design sand pump for mine is discussed , and the method of increa...
那時候,牙科學剛起步,拔牙都不打麻藥。In those days, dentistry was basic. Extractions were carried out without anaesthetic.他用過麻藥,現在仍眩暈無力.He's still groggy from the anaesthetic.局麻藥溶液中加入腎上腺素,使血管收縮.The addition of epinephrine to local an...