copper造句
121. There were mines for copper, lead, cobalt. nickel, antimony, manganese and uranium.
122. The Bisbee mines successfully produced copper and its related metals for 90 years.
123. Teams of scuba divers have injected thousands of them with copper.
124. The joints that hold the gold plated, cylindrical copper mirror are standard components.
125. Nearly all exported products were primary commodities such as palm oil and cocoa, or copper and gold.
126. It was even proposed at one point that the reef itself should simply be drenched in copper.
127. Water lilies in a pool outside the coffee area were made of tin sprayed to look like copper.
128. Princes Metal An alloy of copper and zinc, which after chemical treatment and burnishing, has a gilt-like appearance.
129. The greater abundance of iron ores over those of copper also meant that iron was more readily obtainable and cheaper.
130. The green copper figurines have one arm waving towards the sky and one pointing downwards.
131. Much of the rubberised coating on the wires had flaked and cracked open, exposing gleaming copper strands.
132. This stage can also be used for double-checking your copper track design for errors or omissions.
133. The first copper light of morning was creeping up Great Head bluff and spilling over the harbor.
134. Sending such digital signals lends itself well to using light along optical fibres rather than electrical signals along copper wires.
135. To keep them clean, simply wash them and use a good copper polish.
136. Industrial-strength decor with steel shelves and cement floors, copper and glass, and greenery.
137. I know that, as a teenager, he was caught stealing copper pipe from a construction site and put in jail.
138. In front of the range stood the large copper tub.
139. Some success has been reported in algae control by adding a very dilute copper sulphate or copper citrate solution to the water.
140. Therefore, the small amounts of copper were almost certainly added deliberately to harden the alloy without significantly debasing the silver.
141. Until 1975, while copper prices were high, this burden was bearable.
142. Increased urinary levels of arsenic and mercury will coat the copper with black and silvery deposits, respectively.
143. Pollard would sit there savoring their gradations: honey amber, copper amber, apricot amber, root-beer amber.
144. He even brought copper and brass items to decorate the place.
145. Britain also is the largest contributor of heavy metals, copper, cadmium, lead, to the North Sea. 3.
146. The pipes are made of an alloy of copper and zinc.
147. The metals -- copper, silver and zinc -- accumulate with other pollutants in the bay bottom, harming aquatic life.
148. What are Coins A coin is a piece of money made out of metal, usually gold, silver or some copper alloy.
149. The stockpile gains come as weakening demand for new housing and automobiles cuts consumption of copper just as mine production is increasing.
150. Some work will begin this summer, when more than an acre of new copper roofing will be installed.
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