查询词典 nonmetallic

Most of them can be employed as engineers in the fields of the research and development, process, equipment design, manufacture and management of i norganic nonmetallic materials.

培养能在无机非金属材料结构研究与分析、材料的制备和加工成型等领域从事科学研究、技术开发、工艺和设备设计、生产及经营管理的工程技术人才。

Gas valve ; surface pockmark ; 4Cr10Si2Mo steel ; nonmetallic inclusions

气门；表面麻坑； 4Cr10Si2Mo钢；非金属夹杂物

Thermodynamic analysis is important in research and practical production of inorganic-nonmetallic material.

化学热力学分析对无机材料科学研究和生产实践有重要的指导作用。

This text proposes a new practice mode of "entering the famous factory, visiting the great teacher, reserving a post and practice" in the nonmetallic materials specialty undergraduate course of practical education. The mode pads attention to cooperating the practice base, guiding the construction of the teaching body and encouraging innovation.

practice mode ；本文重点阐述了在无机非金属材料专业本科实践教育中，通过加强校内外实践基地的建设与合作，重视指导教师队伍的建设，并鼓励学生实践中求创新，提出了"进名厂，拜名师，挂职实习"的实践模式。

This type design is compact, the area is small, uses inspires the mirror system and the import high speed seals to the type CO2 laser generator, the coordinate high quality stable laser power source, hits the sign precision to be high, the speed is quick, the stable property, can in each kind of Asian gram force, the quartz, the cotton material, the leather, the woodware, the shell, the agate, the marble and so in the nonmetallic material hit sign each kind of design, the character, the writing as well as the punch and so on, is a section of performance-to-price ratio extremely high hits the sign equipment.

该机型设计紧凑，占地面积小，采用高速振镜系统和进口封离式CO2激光发生器，配合优质稳定的激光电源，打标精度高，速度快，性能稳定，能在各种亚克力、水晶、布料、皮革、木制品、贝壳、玛瑙、大理石等非金属材料上打标各种图案、人物、文字以及打孔等，是一款性价比极高的打标设备。

A pale yellow nonmetallic element occurring widely in nature in several free and combined allotropic forms.

硫，硫磺：一种浅黄色的非金属元素，以几种游离的或化合物的同素异形体形态，广泛地存在于自然界中。

A multivalent nonmetallic element of the nitrogen family that occurs commonly in inorganic phosphate rocks and as organic phosphates in all living cells; is highly reactive and occurs in several allotropic forms.

一种多价的氮族非金属元素，通常见于无机磷酸盐岩石中或作为有机磷酸盐存在于活细胞中，极其活跃，有多种同素异形体。

Symbol P A highly reactive, poisonous, nonmetallic element occurring naturally in phosphates, especially apatite, and existing in three allotropic forms, white, red, and black. An essential constituent of protoplasm, it is used in safety matches, pyrotechnics, incendiary shells, and fertilizers and to protect metal surfaces from corrosion.

符号 P 磷：一种易起化学反应的、有毒的非金属元素，常在磷酸盐中天然存在，尤其是磷灰石，以三种同素异形的形式存在，为白色，红色和黑色，是原生质的基本成分，可用于安全火柴、烟花、燃烧弹和化肥，还可以保护金属表面免于腐蚀。

A toxic nonmetallic element related to sulfur and tellurium; occurs in several allotropic forms; a stable gray metallike allotrope conducts electricity better in the light than in the dark and is used in photocells; occurs in sulfide ores.

有毒的非金属元素，有多种同素异形体，稳定且有金属特性的灰色同素异形体用于光电池，其在亮处的导电性比在暗处好，见于硫化物矿石中。

An abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds.

一种丰富的非金属四价元素，有三种同素异形体：无定形碳、石墨、金刚石。

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。