复合材料的纳米结构也能使较轻的材料具有很大机械强度。
The nanostructure of composites can also provide great mechanical strength in relatively light materials.
简述了一种结构新颖、实用性强的海带丝切割机，该机通过机械切割代替手动切割，减轻了劳动强度，提高了生产效率。
Kelp cutter is novel in construction and practical. It replaces hand cutting by machine cutting. This cutter lightens intensity of Labour and raises Labour productivity.
用于需要高强度的结构部分，机械零件及货车底盘。
Structural parts requiring high strength; machine parts, truck chassis parts.
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