英语词汇“tantalum”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

tan·ta·lum

(tăntə-ləm)

n. Symbol Ta

A very hard, dense, gray metallic element that occurs chiefly in columbite-tantalite and is exceptionally resistant to chemical attack below 150°C. It is used to make electrolytic capacitors for portable electronic and computing devices; superalloys for aircraft, missile, and nuclear reactor parts; filaments; and surgical instruments. Atomic number 73; atomic weight 180.948; melting point 3,017°C; boiling point 5,458°C; specific gravity 16.4; valence 2, 3, 4, 5. See Periodic Table.

[New Latin, from Latin Tantalus, Tantalus (from its high resistance to absorbing acids even when immersed in them); see TANTALUS.]

单词	tantalum
释义	tan·ta·lum (tăntə-ləm) n. Symbol Ta A very hard, dense, gray metallic element that occurs chiefly in columbite-tantalite and is exceptionally resistant to chemical attack below 150°C. It is used to make electrolytic capacitors for portable electronic and computing devices; superalloys for aircraft, missile, and nuclear reactor parts; filaments; and surgical instruments. Atomic number 73; atomic weight 180.948; melting point 3,017°C; boiling point 5,458°C; specific gravity 16.4; valence 2, 3, 4, 5. See Periodic Table. [New Latin, from Latin Tantalus, Tantalus (from its high resistance to absorbing acids even when immersed in them); see TANTALUS.]
随便看	ultra- ultrabasic ultracentrifugal ultracentrifugally ultracentrifugation ultracentrifuge ultraconservatism ultraconservative ultradian ultrafiltration ultrahigh ultrahigh frequency ultraism ultraist ultraliberal ultralight ultralow frequency ultraluxe ultramafic ultramarathon ultramarathoner ultramarine ultramicrometer ultramicroscope ultramicroscopic