金属元素

A light silver-white ductile bivalent metallic element; in pure form it burns with brilliant white flame; occurs naturally only in combination (as in magnesite and dolomite and carnallite and spinel and olivine).

轻而软的银白色二价金属元素，纯净状态下燃烧会发出明亮白光，仅天然存在于化合物中（如菱镁矿、白云石、光卤石、尖晶石、橄榄石）。

A soft silvery white toxic metallic element used in steel alloys; it occurs in several complex minerals including carnotite and vanadinite.

一种软质的银白色有毒金属元素，用于钢合金，存在于许多复合矿物中，包括钒钾铀矿和钒铅矿。

In some cases, some metals in sediments could be released into the overlying water, causing second pollution, and become a"chemical bomb"hiding under lake water.

另外，在一定条件下，沉积物中部分金属元素也可再次向上覆水体释放，造成"二次污染"问题，严重威胁到湖泊／水库的水质安全，成为埋藏在湖泊深处的一颗"定时炸弹"。

Sediments, accommodating various kinds of metals from weathering of drainage basins and anthropogenic discharges, may become a potential "chemical bomb" gradually.

沉积物容纳了来自流域自然风化及人为排放的各种金属元素，成为一个潜在的"化学炸弹"。

"It is the most abundant metallic element in Earth's crust, chiefly in bauxite, feldspars, mica s, clay minerals, and laterite. It also occurs in gemstones, such as topaz, garnet, and chrysoberyl; emery, corundum, ruby, and sapphire are crystalline aluminum oxide."

为地壳中丰度最高的金属元素，多存在于铝土矿、长石、云母、黏土等矿物和砖红壤中，也存在于宝石之内，如黄宝石、红宝石及金绿宝石；而刚玉金刚砂、深红宝石及蓝宝石则为晶透的氧化铝。

"It is the most abundant metallic element in Earth's crust, chiefly in bauxite, feldspars, micas, clay minerals, and laterite. It also occurs in gemstones, such as topaz, garnet, and chrysoberyl; emery, corundum, ruby, and sapphire are crystalline aluminum oxide ."

为地壳中丰度最高的金属元素，多存在于铝土矿、长石、云母、黏土等矿物和砖红壤中，也存在于宝石之内，如黄宝石、红宝石及金绿宝石；而刚玉金刚砂、深红宝石及蓝宝石则为晶透的氧化铝。

A soft gray ductile metallic element used in alloys; occurs in niobite; formerly called columbium.

一种灰色金属元素，软质，易延展，用于合金中，见于铌铁矿，以前称作钶。

It is a metallic element that is found in the crust of Earth.

这是一种金属元素，是在地壳中。

It is unlikely that they will deplete the soil of iron, as iron is the most abundant metallic element in it.

至于说这种稻株会耗尽土壤中的铁更是不可能的，因为铁是地球上最丰富的金属元素。

Keywords: Refractory metal element;double salt;complex;stoichimetry;thermodynamic property

中文关键词：稀有高熔点金属元素；复盐；配合物；化学计量；热力学性质

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。