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化学热处理安全
释义
化学热处理安全
Encyclopedia
工学
热加工安全
释
chemical heat treatment safety
化学热处理安全
改变金属和合金工件表层的化学成分、组织和性能的金属热处理工艺过程中的安全防范意识和措施。
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open university
OpenURL
open vascular bundle
open venation
Open water swimming
openwidth dyeing
open winding motor
open window experiment
openwork wild goose pattern
open wound of neck
open xuanji
OPEP
opera
opera accompaniment
opera actor's costumes and paraphernalia of the Qing court
opera adages
opera apprenticeship
opera art film
opera brick carvings of the Bozhou Gorgeous Dramatic Stage
opera brick carvings on the Ye clan’s buildings in Longyou County
opera brick engravings at Baiyun Temple on Mount Zituan
opera buffa
opera carvings of the Foshan Ancestral Temple
opera chest of Xiawa Troupe in Aohan Banner
opera compere
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