The invention is mainly applied to the austenitic stainless steel welding in the fields of petroleum, chemical industry, metallurgy, machinery and naval construction.
本发 明主要用于石油、化工、冶金、机械、造船等领域的奥氏体不锈钢焊接。
Historian and naval officer Samuel Eliot Morison described the fighting this way in his book "The Struggle for Guadalcanal": "For us who were there, or whose friends were there, Guadalcanal is not a name but an emotion, recalling desperate fights in the air, furious night naval battles, frantic work at supply or construction, savage fighting in the sodden jungle, nights broken by screaming bombs and deafening explosions of naval shells."
VOA: special.2011.06.23
应用推荐