贵金属

Objective To investigate the elastic limit and relevant enclasp force of the non-precious metal casting clasp.

目的 研究非贵金属铸造卡环的弹性极限及其相应卡抱力。

ABSTRACT: Objective To investigate the elastic limit and relevant enclasp force of the nonprecious metal wrought wire clasp.

目的 研究非贵金属锻丝卡环的弹性极限及其相应卡抱力。

Objective To investigate the elastic limit and relevant enclasp force of the non-precious metal wrought wire clasp.

目的研究非贵金属锻丝卡环的弹性极限及其相应卡抱力。

Some methods for the determination of precious metals such as classical electroanalysis and atomic absorb spectrum analysis are poor precision and detection limit so that they can not be satisfied with modem times' analysis need.

在贵金属元素的众多分析检测方法中，经典的极谱法和原子吸收法等精确度和检测限差，难以满足现代分析的要求。

In 2004, used emission control technology,such as used catalyst rich metals. Both S and P

2004，使用贵金属更多的催化剂等控制排放技术，汽油机油中的磷含量和

In addition, we use different kinds of material analysis method to analyses the physics mechanism of luminescence efficiency of erbium ion strengthened by noble metal thin film.

除此之外，我们也利用各种不同材料分析的方式来分析贵金属薄膜增强铒离子发光效率的物理机制。

Artisans traditionally work in media such as stone, wood, ceramics, glass, common and precious metals, basketry, textiles, esparto grass, leather, fur, wax, paper, and flowers.

传统上，手艺人在介质上进行加工，介质比如石头，木材，陶瓷，玻璃，普通和贵金属，篮筐编织，纺织，芦苇草，皮革，毛皮，蜡，纸张和鲜花。

And he is good at root canal therapy, beauty and white teeth, periodontal disease, pull out wisdom tooth and all kinds of movable false tooth repair and white such as CEREC3D, all ceramic, ceramic inlay, veneering,noble metal Crown, ect.. Studying in tooth implant field in-depth.

擅长显微根管治疗，牙齿美白，牙周病的系统治疗，智齿的拔除以及各类义齿的修复，特别是CERC 3D全瓷冠，瓷嵌体，瓷贴面，贵金属烤瓷牙等高端烤瓷牙的美容修复，在牙齿种植领域具有较深的研究。

It was concluded that a noble and base metal metaflogenic series was composed of the inner part of BIFs and ferruginous rock series. And mantle plume had close spatio-temporal and genetic relationships with BIFs. In anoxic environment in Precambrian, the anaerobic bacteria would provide oxygen for ferruginous deposition during photosynthesis.

认为BIFs内部以及包括BIFs在内的含铁岩系均构成贱、贵金属成矿系列；地幔柱与BIFs之间存在密切的时、空和成因联系；在早前寒武纪缺权的环境下，厌氧的细菌类生物通过光合作用为BIFs中铁质沉淀提供了氧。

Influence of trace rare earth additives such as Ce, Y and Gd on microstructure and properties of Cu-Ag in situ filamentary composite was studied in this paper.

作者： 张晓辉1，闫琳1，宁远涛2单位： 1。北京有色金属研究总院有研亿金新材料股份有限公司，北京 100088；2。昆明贵金属研究所，云南昆明 650221

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。