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工学
冷弯成形
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空弯
在冷弯成形过程中,上下轧辊不能同时作用,仅由上轧辊或下轧辊进行弯曲成形而出现的弯曲盲角现象。又称自由弯曲。是复杂冷弯成形中的一种常见现象。
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pollution discharge permit system
pollution ecology
pollution export
pollution exposure dose
pollution exposure-response relationship
pollution from tailings
pollution halo hypothesis
pollution haven hypothesis
pollution indicator plant
pollution indicator species
pollution-intensive industry
Pollution Load
pollution of agricultural inputs
pollution of motor vehicle exhaust gases
pollution of natural water
pollution prevention and control of key water basins
pollution prevention law
Pollution Probe Foundation,Canada
pollution-resisting species of tree
pollution rights trading market
pollutions emitted from fossil-fired power plant
pollution source
pollution source census
pollution source monitoring of fisheries waters
pollution source of water body
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更新时间:2025/11/30 1:15:18