copper的示例

• The downward drift in copper prices looks set to continue.

• Brass is an alloy of copper and zinc.

• Chemical analysis revealed a high content of copper.

• They mine a lot of copper around these parts.

• One of the properties of copper is that it conducts heat and electricity very well.

• The runs with the glass upper surface duplicated the conditions with the copper plate and the corresponding photographs were correlated.

• A bill based on the weight of the copper (and later zinc), and hence the amount of electricity used, was sent to the household.

• Elemental analyses of this deteriorated wood showed high levels of copper, chromium, iron, and lead, suggesting that a caustic chemical spill had occurred.

• Indeed, all these profiles were close together due to the high thermal conductivity of copper.

• The electrical pulses are directed through a copper coil, shaped in a figure eight, which is placed against the human's scalp.

• Diluted solutions of zinc and copper chloride and sodium hydroxide were used.

• In the present study, the metals chosen (copper, zinc, manganese and iron) are all essential for normal molluscan metabolism but are toxic at high concentrations.

• For most tests this groove was made by melting a 13 mm diameter, heated copper pipe half a diameter into the ice.

• The copper specimen was painted black on the sides to enhance its emissivity for the infrared thermograph study.

• Results were obtained for arsenic, cadmium, chromium, cobalt, copper, lead, nickel, and zinc.

• The only monetary metal produced domestically was copper.

• The facade tiles were attached to the columns from the inside with copper wire.

• Copper coinage was the domestic currency that hitherto had enjoyed a credibility bestowed by its official acceptance.

• A set of copper strips dipped in mercury-filled grooves was used for both high power and low noise circuits.

• This complex is very strong and the bound copper is not available for cellular uptake.