The nanostructure of composites can also provide great mechanical strength in relatively light materials.
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。
Some of the hardest tool materials lack strength because they are too brittle.
有些最硬的刀具材料由于太脆而缺乏强度。
The strength of natural stone materials is an important technical index in masonry construction.
天然石料的强度在砌体工程中是一项重要的技术指标。
The strength of natural stone materials is an important technical index in masonry construction.
天然石料的强度在砌体工程中是一项重要的技术指标。
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