金属元素

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 ''.

一种有光泽、灰白色、坚固的金属元素，类似钛，在核反应堆中用作中子吸收剂，见于斜锆石中。

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 .

一种有光泽、灰白色、坚固的金属元素，类似钛，在核反应堆中用作中子吸收剂，见于斜锆石中。

Selenium is one of the most important metalloid element existing in biotic environment.

硒是生物环境中存在的一种重要的类金属元素。

A hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition.

一种二价或三价金属元素，坚硬的银白色铁磁体，植物动物营养中的微量元素。

Silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition.

一种二价或三价金属元素，坚硬的银白色铁磁体，植物动物营养中的微量元素。

A bivalent and trivalent metallic element of the rare earth group.

稀土属二价和三价金属元素。

The electronic and optical properties of blende phase ZnS systems doped with 3d transition metal ions were studied by the first-principles method based on density functional theory. The density of state, band structure, and absorption coefficient were calculated.

采用基于密度泛函理论的第一性原理方法对掺杂不同3d过渡金属元素的闪锌矿型ZnS系统进行了研究。

A soft gray malleable metallic element that resembles tin but discolors on exposure to air; it is highly toxic and is used in rodent and insect poisons; occurs in zinc blende and some iron ores.

一种软且可延展的灰色金属元素，类似锡，但暴露于空气中会退色，有剧毒，用于制啮齿动物和昆虫毒药，见于闪锌矿和一些铁矿石中。

A hard brittle blue-gray or blue-black metallic element that is one of the platinum metals; the heaviest metal known.

一种硬而脆的蓝灰色或蓝黑色金属元素，铂系金属，已知最重的金属。

Cadmium is known as a harmful metal to animal health.

镉是一种公认的对动物健康有害的金属元素。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。