| 单词 | 硬度 |
| 释义 | 〔manganese〕A gray-white or silvery brittle metallic element, occurring in several allotropic forms, found worldwide, especially in the ores pyrolusite and rhodochrosite and in nodules on the ocean floor. It is alloyed with steel to increase strength, hardness, wear resistance, and other properties and with other metals to form highly ferromagnetic materials. Atomic number 25; atomic weight 54.9380; melting point 1,244°C; boiling point 1,962°C; specific gravity 7.21 to 7.44; valence 1, 2, 3, 4, 6, 7. See table at element 锰：一种呈灰白色或银白色的易脆金属，产生于几种同素异形体中，世界各地均有，尤其盛产于软锰矿、菱锰矿和海底的结核中。它与钢的合金可增加强力、硬度、抗腐蚀力以及其它特性；与其它金属可以合成高铁磁性的材料。原子序数为25；原子量54.9380；熔点1,224°C；沸点1,962°C；比重7.21至7.44；化合价为1,2,3,4,6,7 参见 element〔calcium〕A silvery, moderately hard metallic element that constitutes approximately 3 percent of the earth's crust and is a basic component of most animals and plants. It occurs naturally in limestone, gypsum, and fluorite, and its compounds are used to make plaster, quicklime, Portland cement, and metallurgic and electronic materials. Atomic number 20; atomic weight 40.08; melting point 842 to 848°C; boiling point 1,487°C; specific gravity 1.55; valence 2. See table at element 钙：一种银色的、硬度适中的金属元素，约占地壳中各种元素的百分之三，是多数动物和植物的基本组成物之一。自然存在于石灰石、石膏、氟石以及其它化合物之中，用于制造石膏、生石灰、硅酸盐水泥以及冶金和电子材料。原子序数20；原子量40.08；熔点842到848度；沸点1,487度；比重1.55；化学价2 参见 element〔binder〕Something, such as the latex in certain paints, that creates uniform consistency, solidification, or cohesion.粘合剂：可产生均匀的浓度、硬度和粘着度的某物，如涂料中的乳剂〔fragile〕Brittle refers to hardness and inelasticity of material that makes something especially likely to fracture or snap when it is subjected to pressure: Brittle 指在受到压力时尤其可能被打碎或折断的物体原料的硬度或无弹性： 〔marble〕Resembling metamorphic rock in consistency, texture, venation, color, or coldness.与大理石相似的：在硬度、质地、脉纹、色彩或冷度上象变质岩的〔magnesium〕A light, silvery-white, moderately hard metallic element that in ribbon or powder form burns with a brilliant white flame. It is used in structural alloys, pyrotechnics, flash photography, and incendiary bombs. Atomic number 12; atomic weight 24.312; melting point 649°C; boiling point 1,090°C; specific gravity 1.74 (at 20°C); valence 2. See table at element 镁：一种质轻、银白色的成条状或粉状的中性硬度金属元素，燃烧时有很亮的白色火焰。用于建筑方面的合金、焰火、闪光灯或燃烧弹。原子序号12；原子量24.312；熔点649°C；沸点1,090°C；比重1.74(20°C时）；原子价2 参见 element〔iron〕Great hardness or strength; firmness:强壮，刚强：很高的硬度或很强的力量；坚定：〔stone〕Something, such as a hailstone, resembling a stone in shape or hardness.雹：在形状上或硬度上与石头相像之物，如雹块〔petrous〕Of, relating to, or resembling rock, especially in hardness; stony.坚硬的，石质的：岩石的，与岩石有关的，或岩石状的，特别指硬度方面；坚硬的〔mineral〕A naturally occurring, homogeneous inorganic solid substance having a definite chemical composition and characteristic crystalline structure, color, and hardness.矿物：一种自然生成的同类无机固体，具有确定的化学成分和独特的晶体结构、颜色和硬度〔adamantine〕Having the hardness or luster of a diamond.似金刚石的：具有金刚石的硬度或光泽的〔stony〕Resembling stone, as in hardness.坚硬如石的：像石头的，如在硬度方面〔consistency〕beat the mixture to the consistency of soft butter.将混合物搅拌得硬度与软牛油相当〔flimsy〕Lacking solidity or strength:脆弱的：缺乏硬度或力度的：〔temper〕To bring to a desired consistency, texture, hardness, or other physical condition by or as if by blending, admixing, or kneading:调：通过或如通过混和、融和或揉捏来使其达到所需的坚固性、质地、硬度或其它物理状态：〔adamant〕A stone once believed to be impenetrable in its hardness.硬石，金刚石：一种曾被认为在硬度上不可穿透的石头〔temper〕To harden or strengthen (metal or glass) by application of heat or by heating and cooling.回火：通过加热或热冷交替来增加（金属或玻璃）的强度和硬度〔penetrometer〕A device for measuring the penetrability of semisolids.硬度测量计：一种用于测量半固体硬度及可穿透度的仪器〔steely〕Resembling steel, as in color or hardness:钢制的：在颜色或硬度上似钢的：〔semihard〕Intermediate between hard and soft:半硬的：硬度介于坚硬和柔软之间的：〔hardness〕The relative resistance of a metal or other material to denting, scratching, or bending.硬度：某种金属或其他物质相对抗压、抗划或抗折的能力〔trifle〕A moderately hard variety of pewter.白镴：中等硬度的白镴〔alnico〕Any of several hard, strong alloys of iron, aluminum, nickel, cobalt and sometimes copper, niobium, or tantalum, used to make strong permanent magnets.铝镍钴合金，磁钢：由几种硬的强金属，如铁与铝、镍、钴等合成，有时是铜、铌、钽合成，用来制作超硬度永磁合金〔grit〕The texture or fineness of sand or stone used in grinding.粒度，硬度：用作磨料的砂或石的精细度〔tempered〕Having the requisite degree of hardness or elasticity. Used of glass or a metal.经过回火的：适当的具有所要的硬度或弹性的。通常用于玻璃或金属〔temper〕The degree of hardness and elasticity of a metal, chiefly steel, achieved by tempering.韧度：通过回火后的金属（主要指铁）的硬度和韧度〔smooth〕Having an even consistency:柔软的：硬度平等的： |
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