At room temperature, the thermal conductivity of a diamond is about six times higher than that of a piece of copper.

Copper conducts electricity better than other materials.

铜导电比其它材料好.

Copper is a good medium for the conduction of heat and electricity.

铜是热和电的良导体.

The students are asked to prove the purity of copper.

要求学生们检验铜的纯度.

Copper is a good conductor of electricity.

铜是良导体.

Among the mineral deposits of the province , tin occupies first place ; copper comes second.

该省矿藏, 以锡最多, 铜次之.

Copper has less resistance to electricity than lead.

铜比铅的电阻要小.

Copper is a good conductor of heat.

铜是热的良导体.

The manufacture technology of sodium copper chlorophyllin was studied and the best production conditions were determined.

本文研究了用水葫芦叶中的叶绿素来制作叶绿素铜钠的生产工艺,并确定了工艺的最佳条件.

Objective : To investigate the pharmacodynamics of quickly release gastric drug Sodium Copper Chlorophyllin Tablets.

目的: 观察速释胃药叶绿酸铜钠片的药效学.

OBJECTIVE To prepare suppository sodium copper chlorophyllin and establish a method for its quality control.

目的制备复方叶绿素铜钠栓并建立其质量控制标准,满足临床需要.

GLUCOSE-FRUCTOSE SYRUP , WATER, SUGAR , ACETIC ACID , SALT , GELLING AGENT : PECTIN, DRIED MINT , COLOURS: COPPER CHLOROPHYLLIN, TUMERIC, CITRIC ACID, SPEARMINT OIL.

成分: 葡萄果糖浆、水、食糖 、 醋酸、食盐 、 胶凝剂 、 叶绿酸 、 柠檬酸、薄荷油等.

The overall yield of sodium copper chlorophyllin is 41.3 %.

全过程叶绿素铜钠盐的收率可达41.3%.

The technology of preparing sodium-copper chlorophyllin from carrot leaves was studied.

由胡萝卜樱叶提取叶绿素并经皂化、铜代及成盐反应制备叶绿素铜钠.

A large amount of wastewater is produced during mining and beneficiating operations at Dexing Copper Mine.

德兴铜矿在采矿和选矿的过程中产生大量的废水.

In Chimashan Copper Mine, the orebody is mid-thick androck mass in the hanging-wall is moderately stable.

赤马山铜矿系中厚以上矿体,上盘中等稳固.采用浅眼留矿法开采时,贫化损失大,采矿强度低,难以适应当前生产要求.

Dexing Copper Mine adopts leaching-solvent extraction-electrolysis process to recover copper from copper ore.

江西铜业公司德兴铜矿采用堆浸 - 萃取 - 电积工艺从废矿石中回收铜资源.

The Tonglu Mountain Copper Mine used an elaborate system of timbering support the working areas.

铜绿山古矿井采用符合力学原理的木框架支护技术,框外用木棍、木板作护壁,组成完整安全的井筒.

Dexing Copper Mine is an especially large porphyry copper mine in the world.

德兴铜矿是世界级特大型斑岩铜矿.

The experiment results show that high-bench mining is successful at Anqing copper Mine.

试验结果表明,高阶段强化开采在安庆铜矿的试验研究获得圆满成功.

Dongguashan copper mine has such characteristics as high stress ( 30~38 MPa ) and rockburst possibility.

冬瓜山铜矿深井具有高应力 ( 30~38MPa)、存在岩爆倾向的特点.