查询词典 metallic element

A trivalent metallic element of the rare earth group; usually occurs in association with yttrium.

一种稀土属的三价金属元素，通常与钇共生。

There are volcanicity and kinds of metalliferous minerals formed by rush of current on the Mars,which is superior to the metallic element spread in the terram on the Moon.

火星上有火山活动和水流冲击形成的各种金属富矿，这比散布在土石中的月球金属元素优越得多。

A metallic element having four allotropic forms, the most common of which is a hard, extremely brittle, lustrous, silver-white, crystalline material.

锑：一种金属元素，有四个同素异形体，最常见的是一种硬而脆的银白色发光晶体物质。

A soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process.

一种软质的黄白色三价金属元素，稀土属，能通过离子交换过程从氟碳锑矿或独居石中重新获

A silvery malleable metallic element that resists corrosion; used in many alloys and to coat other metals to prevent corrosion; obtained chiefly from cassiterite where it occurs as tin oxide .

一种银色金属元素，可延展、抗腐蚀，用于许多合金中，亦用于包裹其他金属以防其腐蚀，主要取自锡石中的锡氧化物。

Results indicates that PHEDP gun material surface metallization can lead chemical reaction between metallic element and interface, and thus generate compounds, form firm interface, even for heterogenic materials, which have big difference on structure, organization and properties.

研究结果表明，用脉冲HEDP法材料表面金属化，即使对于结构、组织和性质差异较大的异质材料界面，金属元素与材料界面也会发生化学反应，形成化合物，使得界面结合非常牢固。

The invention relates to a molecular sieve, in particular to an aluminum phosphosilicate SAPO-34 type molecular sieve and the preparation thereof, wherein the SAPO-34 type molecular sieve contains zirconium ion as a modified metallic element.

本发明涉及一种分子筛，具体涉及磷硅铝酸盐SAPO-34型分子筛及其制备方法，在SAPO-34型分子筛中含有作为改性金属元素的锆离子。

A gray tetravalent metallic element that resembles ''.'zirconium'.

一种灰色的四价金属元素，化学性质与''。

A soft grey 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

pl。 Tlingits， Tlingit特里吉特人阿拉斯加南部和英属哥仑比亚北部沿海地区以航海为业的美洲印第安人

"Bismuth:a white, crystalline, brittle , highly diamagnetic metallic element used in alloys to form sharp castings for objects sensitive to high temperatures and in various low-melting alloys for fire-safety devices."

铋：白色、晶状、易碎、高度抗磁的金属元素，用于高温敏感物体的合金中，以铸成锋利物件，多种用于防火安全设施的低熔点合金。

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。