The effects of double coating on the pores of lime titania type stainless steel electrode are studied with high speed cinecamera, oscillograph, optical microscope, SEM with EDS, etc.
采用平板堆焊、高速摄影、波形分析、光学金相、扫描电镜能谱分析等

法,研
了双

对钛钙型不锈钢焊条气孔的影响。
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洲
时报 (New York Times)
时报 (New York Times) In Florida, legislators rewrote state laws, switched to paper ballots and optical scanners (no more butterfly ballots or hanging chads), and mandated automatic recounts for races with margins of half a percentage point.
佛罗里达州的议员重修了州法律,投票改
纸质选票和光学
描仪(从此再也不会出现所谓的“蝴蝶选票”或者“孔屑废票”了)还对
误差范围为0.5%的机器重新统计选票做出了硬性要求。