<正> 明代中期以后,是制墨业的辉煌时代,墨之在万历,犹诗之有盛唐。墨的故乡徽州,由南唐奚氏父子制墨开始,逐代繁衍,形成优良传统。到了明代,墨的造作规模、质量、花纹图案等方面,都有相当大的发展和提高。当时出现的许多杰出的漆工、雕手、画家,都给徽墨的发展创造了有利条件,从而促使制墨业空前繁荣,形成了一支强大的专业队伍。明末麻三衡《墨志》记载明代徽州墨工有一百二十多家,程君房就是当时制墨名家之一。程君房所经营的墨店为还朴斋、宝墨斋。关于其署名,有的墨上同时写程君房与程大约。《歙县志》把程大约与程
A national important researchproject---rare earth hydrogenstorage material and the deviceand technique for hydrogen puri-fication has successfully beendeveloped
<正> 1985年2月,简阳县海螺乡万年村农民挖竹坑时挖得铜印一方,现存简阳县文化馆。铜印长6.5、宽6.3、厚0.6、矩形纽高4.5厘米。印面阳文篆书"道经师宝"(见图)。纽两侧刻阴文楷书,右为"正德三
High purity terbium oxide has alwaysbeen produced by the conventional extra-ction chromatography.The main disadvan-tages of the method are:(1)the facili-ties us
A fast-quenching process em-ploying ZKIOT Vacuum Furnace tocontinuously produce Nd-Fe basePM materials has been codevelopedby Nuclear Power Research Insti-tute
微信,这款十分火爆的应用软件,交友理财美食营销,已经融入到了市民生活中的方方面面,不光年轻人乐在其中,就连退休的老人也赶起了时髦,纷纷不甘落伍“朋友圈”.
Jointly developed by GeneralResearch Institute of NonferrousMetals in Beijing,Northeast Uni-versity of Technology,ZhuzhouHard Alloy Factory and Zigong-Hard Allo
The All China Technical Service Centrefor the Application of Rare Earths inCast Iron was established in TsinghuaUniversity,Beijing,on Oct.23,1989.Itsprincipal t
A pilot exciter fitted with RE perma-nent magnet,with a capacity of 60-160KVA,has been jointly developed by ShenyangUniversity of Technology,the Harbin E-lectri