copper造句
151. Some countries are rich because they have oil or copper or iron.
152. The site was contaminated with copper arsenate, a fairly noxious substance, but the fern was apparently thriving.
153. The water forms sulfuric acid, which leaches copper, cadmium, zine and other metals from the ore.
153. Wish you will loveand make progress everyday!
154. Complete circuit diagram for the Quick Prom interface Fig. 4. printed circuit board component layout and full size copper foil master pattern.
155. Specially treated copper wires conduct the signal from the amplifier to the speakers.
156. There were copper kettles and warming pans and horse brasses.
157. Lithography had many advantages over the difficult and complicated processes of copper and steel engraving, and even over the woodcut.
158. A single atom of copper is still a piece of copper.
159. One disadvantage of copper pipe is that it can cause the loss of the zinc coating from galvanised pipes and water cisterns.
160. The coin is made from copper bronze but has no patina.
161. The government was obliged to suspend foreign copper shipments.
162. These headphones also utilize UHPLC copper in the connecting cable.
163. Among the mineral deposits of the province , tin occupies first place ; copper comes second.
164. Copper is also employed in the alkaline Bemberg rayon process.
165. A . alkaline etching and recycling of liquid copper recovery equipment.
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