semi-rigid frame是什么意思 semi-rigid frame怎么读
semi-rigid frame的用法和样例
- The structural members of this outer rigid frame will be made of tin plated steel to provide the strength required and in time produce an aged green tint as the material tarnishes.
这个外面刚性框架的结构成员将使锡被镀的钢提供力量必须和在时间产物年迈的绿色色彩作为物质污名。
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