查询词典 copper coin

Mother took a blue cloth parcel from the wardrobe, unfolded it and picked out a copper coin of the Daoguang period. With shaking hands she put the coin on a dumpling wrapper, added some filling, and made one which we used to call a good-luck dumpling.

母亲包完这个饺子，用手在边上偷偷捏出一个记号，然后，若无其事地把它和别的饺子放在一起。

The main clue of the transition of the currency system included the transition from the sycee system to the silver dollar system, from copper cash system to the copper coin system and the circulation of the new-typed paper currency.

晚清币制变迁的主线是：银两制度向银元制度的变迁，制钱制度向铜元制度的变迁，清末新型纸币的发行流通也是晚清币制变迁的一部分内容。

The whole divides into four parts: The furnace stack is composed of the square edged orifice copper cash; Binaural by the shovel, the knife-shaped copper coin confronts; The tower covers by the silver piece superimposes; Legs by pearl skeleton.

整体分为四个部分：炉身由方孔铜币组成；双耳由铲、刀币对峙；塔盖由元宝叠加；鼎足由珍珠构架。

Tungsten –Copper alloy is the composite of Tungsten and Copper which own the excellent performances of Tungsten and Copper, such as heat-resistant, ablate-resistant, high-intensity,high-density, excellent thermal and electrical conductivity. It is easy to be machined. It is used widely in such industries as engine, electric power, electron, metallurgy, spaceflight and avigation.

钨铜材料是钨和铜的一种合金，综合了钨和铜的优点，耐高温、耐电弧烧蚀、强度高、比重大、导电、导热性好，易于切削加工，并具有发汗冷却特性，作为真空触头材料、电极材料、电子封装材料以及火箭、导弹特殊用途材料等广泛应用于机械、电力、电子、冶金、航空航天等工业。

Copper is one of the essential microelements for plants. But in recent years, the abuse of copper bactericide and industrial pollution has led to the increase of copper content in environment such as in soil.

铜是一种高等植物生长发育过程中必需的重要微量营养元素，是许多胞内酶所必需的组分或辅酶，它参与很多生理代谢过程，对作物的发育、品质、产量等有重要的影响。

Is a professional production, processing°übare copper wire, copper wire and copper°ü°ütin enameled wire, such as non-ferrous metal materials enterprises.

确山县金龙复合材料有限公司是一家专业生产、加工铜包铝裸丝、铜包铝镀锡丝及铜包铝漆包线等有色金属材料的企业。

Liaocheng seamless business experts predicted that after three quarters of 2009, imports of copper concentrate a maximum of about 4% growth, blister copper imports will drop by about 10% of waste copper imports will fall 20%.

聊城无缝管企业相关专家预测，2009年后三个季度，铜精矿的进口量最多约有4%的增长，粗铜进口量将下降10%左右，废杂铜进口量将下降20%左右。

The operating results have demonstrated the flexibility of the process in producing blister copper from a variety of copper feed materials including a combination of molten and solid copper matte, reverts and fluxes.

操作结果证明该工艺适用于从各种铜原料(包括熔融冰铜、固体冰铜、返料和熔剂的混合料)生产粗铜。

Ice copper, blister copper; nickel-iron alloy; cobalt carbonate; crude lead, electrolytic lead; electrolytic copper,; high ice nickel; cobalt sulphate

德兴市科艺有色金属资源再生有限公司熔炼厂位于中国著名铜都——江西省德兴市，境内的德兴铜矿是亚洲最大的斑岩铜矿，金属矿藏铜、金、银等十分丰富，公司熔炼厂距铁路车站等运输车程均不足1小时，工厂比邻省道、国道、高速公路，交通非常便利。

Selected high-strength, quality copper alloy suitable for running-in is used for DF-5S copper base insertion, with orderly blind borings cut and solid lubricant inlaid in the working surface of the copper alloy.

DF-5S铜基镶嵌自润滑滑块选用适于跑合的高强度优质铜合金，在铜合金工作表面有序的钻盲孔并镶嵌固体润滑剂。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？