查询词典 metallic element

A lustrous white, ductile, malleable metallic element, occurring both uncombined and in ores such as argentite, having the highest thermal and electrical conductivity of the metals.

银一种白色有光泽、韧性的可延展的金属元素，单独或结合在铁矿石如银辉石中，在金属中导热和导电性能最好。

Symbol Ag A lustrous white, ductile, malleable metallic element, occurring both uncombined and in ores such as argentite, having the highest thermal and electrical conductivity of the metals.

符号 Ag 银：一种白色有光泽、韧性的可延展的金属元素，单独或结合在铁矿石如银辉石中，在金属中导热和导电性能最好。

A very poisonous metallic element that has three allotropic forms; arsenic and arsenic compounds are used as herbicides and insecticides and various alloys; found in arsenopyrite and orpiment and realgar.

一种极具毒性的金属元素，有三种同素异性体，砷和砷的化合物用作除草剂、杀虫剂和各种合金，见于毒砂、雌黄、雄黄中。

Transition metal coordinate polymer researchHas summarized the transition metallic element chemical fundamentals, including the atomic radius, the physical property, the chemical activity and the stable oxidation state change rule, forms the preparation the tendency.

过渡金属配位聚合物研究概况简述了过渡金属元素化学基础，包括原子半径，物理性质，化学活性及稳定氧化态变化规律，形成配合物的倾向。

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。

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

稀土属二价和三价金属元素。

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。

A light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite.

轻而软的银白色碱金属元素，空气中能迅速氧化，能与水发生剧烈反应，以天然化合物状态大量存在于海水、光卤石、钾盐镁矾和钾盐中。

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。