常見例句雙語例句Iridium: Metallic chemical element, one of the transition elements, chemical symbol Ir, atomic number 77.銥：金屬化學(xué)元素，爲(wèi)過渡元素的一種，化學(xué)符號Ir，原子序數(shù)77。Chromium: Metallic chemical element, one of the transition elements, chemical symbol Cr, atomic number 24.鉻：周期表VIb族金屬化學(xué)元素，是過渡元素元素之一，化學(xué)符號Cr，原子序數(shù)24。A lustrous gray strong metallic element resembling titanium; it is used in nuclear reactors as a neutron absorber; it occurs in baddeleyite but is obtained chiefly from zircon.一種有光澤、灰白色、堅固的金屬元素，類似鈦，在核反應(yīng)堆中用作中子吸收劑，見於斜鋯石中。權(quán)威例句So production of this metallic element must obviously be increased.FORBES: Solving Climate Change: It's the Technology, Stupid 返回 metallic element