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- This paper describes analysis adjustment and maintain of persulphate etching solution in PCB production. 敘述印制板生產(chǎn)中過(guò)硫酸鹽微蝕液的分析、調整和維護。
- The new method of producing basic copper carbonate from waste etching solution containing copper. 介紹了利用含銅蝕刻廢液合成堿式碳酸銅的新工藝。
- Nanometer copper powders were prepared from acidic waste etching solution containing copper using hydrazine hydrate as a reductive agent. 以酸性蝕刻廢液為銅源,水合肼為還原劑,采用液相還原法制備納米銅粉。
- Waste etching solution containing copper,a type of hazardous waste discharged by PCB manufactories,is a potential menace to the environment. PCB產(chǎn)業(yè)所產(chǎn)生的含銅蝕刻廢液是對環(huán)境存在較大潛在威脅的危險廢物。
- In aluminium anodizing process, concentration of NaOH, Al 3+ and additives in alkaline etching solution were determined. 在鋁合金陽(yáng)極氧化生產(chǎn)工藝中,測定堿蝕槽液苛性鈉、鋁離子、添加劑的濃度。
- KSM-201is air-drying etching resist ink for acidic etching solution, which is used for making patterns on copper-clad laminates by means of acidic etching. KSM-201系列自干型耐酸抗蝕刻油墨用于酸性蝕刻法制造印制板電路圖形。
- recycling of alkaline etching solution 堿性蝕刻液再生
- bingham's etching solution 賓厄姆電解腐蝕液
- They spend the winter(s) in a warmer climate. 他們在氣候較暖的地方過(guò)冬。
- Most plural nouns in English end in "s". 英語(yǔ)的復數名詞多以“s”結尾。
- The sweater had shrunk after repeated washing(s). 這件套頭毛衣洗過(guò)多次已縮水了。
- etching solutions for examination of materials 檢驗材料的侵蝕溶液
- Some old folk(s) have peculiar tastes. 有些老人有特殊的愛(ài)好。
- Answer the following question(s). 回答下列問(wèn)題。
- Most plural nouns in English end in s'. 英語(yǔ)的復數名詞多以s結尾。
- The drug affects one's power(s) of concentration. 這種藥影響人精神不能集中。
- Here are the designs. Which one(s) do you prefer? 這就是那些圖樣.;你喜歡哪一個(gè)[些]?
- Which journal(s) do you subscribe to? 你訂閱哪一種雜志?
- The novel had an enormous vogue in the 1930's. 這本小說(shuō)在三十年代曾廣為流傳。
- He earned four A's in the final examinations. 他期末考試四門(mén)功課得優(yōu)。
