鈍磨石 的英文怎麼說
中文拼音 [dùnmódàn]
鈍磨石
英文
dull stone-
The surface finish for the castings we can provide with are as the following : blacking, zine plating, chrome plating and nichel plating for the carbon steel and the low alloy steel castings ; tumbling, hand dull polishing, mirror polishing, electrolytic polishing and passivation treatment for the stainless steel castings and sandblasting, including glass bead blasting, corundum - sand blasting and quartz - sand blasting form all the steel castings
我公司有能力對鑄件表面作以下精整處理,對于碳鋼和低合金鋼,可以作發黑、鍍鋅、鍍鉻、鍍鎳處理;對于不銹鋼,可作研磨、手工拉絲拋光及鏡面拋光、電拋光、鈍化處理;所有鋼種可作噴砂(玻璃砂、鋼玉砂、石英砂)處理。In the olden times, we want to print a book, we have to cut the whole tree down first and chop them with very unsophisticated axes, which are " kaput " in no time and no use in another time ; and have to polish it with stones and all kinds of things, and to carve one word after another
古時候要印一本書,得用粗糙的斧頭,先砍下一整棵樹,再劈成細片,而且斧頭一下子就會壞掉、變鈍不能用,所以又要花時間用石頭把它磨利,還有種種麻煩的事,然後還要一字一字慢慢刻。
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