| 单词 | 能吸收 |
| 释义 | 〔palladium〕A soft, ductile, steel-white, tarnish-resistant, metallic element occurring naturally with platinum, especially in gold, nickel, and copper ores. Because it can absorb large amounts of hydrogen, it is used as a purification filter for hydrogen and a catalyst in hydrogenation. It is alloyed for use in electric contacts, jewelry, nonmagnetic watch parts, and surgical instruments. Atomic number 46; atomic weight 106.4; melting point 1,552°C; boiling point 3,140°C; specific gravity 12.02 (20°C); valence 2, 3, 4. See table at element 钯：一种柔软的，易拉长的，银白色的，保持光泽的金属性元素，常与铂共生，尤其在金、镍和铜矿中存在。因为它能吸收大量氢，常用作除氢的过滤器或氢化作用的催化剂。其合金可用于电子接触器、珠宝、无磁性表部件以及外科医用器具。原子序数46；原子量106.4；熔点1,552°C；沸点3,140°C；比重12.02（在20°C时）；化合价2，3，4 参见 element〔black〕The achromatic color value of minimum lightness or maximum darkness; the color of objects that absorb nearly all light of all visible wavelengths; one extreme of the neutral gray series, the opposite being white. Although strictly a response to zero stimulation of the retina, the perception of black appears to depend on contrast with surrounding color stimuli.黑色：最小亮度或最大暗度的消色差的明暗度配合；能吸收几乎所有可见波长的所有光的物体的颜色；中性灰色系列的一个极端，白色的相反物。虽然在严格意义上黑色是视网膜对零剌激的反应，但看起来黑色的感应是依靠与周围颜色刺激对比而得来的〔blackbody〕A theoretically perfect absorber of all incident radiation.黑体：能吸收全部入射辐射的理论上的理想物体 |
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