| 单词 | steels |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔close〕Steels closed two points down.钢铁股收盘时下跌了两个百分点。外研社新世纪〔pearlite〕A mixture of ferrite and cementite forming distinct layers or bands in slowly cooled carbon steels.光体，珠铁：在慢慢冷却的碳合金中的层状铁素体和碳素体的混合物美国传统〔self-hardening〕Of or relating to materials, such as certain steels, that harden without special treatment.自淬硬的：能够自行硬化而不需要特殊处理的材料，如某种钢的或与之相关的美国传统 |
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