On the basis of T551 and T561, a new metal deactivator with high efficiency (copper corrosion inhibitor) have been preparated by Weihua co.

在T551和T561的基础上，研制出新的高效金属减活剂(铜腐蚀抑制剂)，解决了高硫极压剂的不足，使铜腐蚀达到1级。

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HIMOD flagship series USES interactive "type v" coil, the internal thread copper tube and punched slotted fin, and heat transfer efficiency is higher than the traditional coil unit.

HIMOD系列旗舰型采用了交互“V型”盘管，采用了带内螺纹的铜管及冲缝型翅片，比采用传统式盘管的机组有更高的传热效率。

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It can increase the heat efficiency of the device and extend the used life of the copper tubes of the condenser.

既提高了机组的热效率，又延长了铜管的使用寿命。

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High-efficiency motors, which have more copper coils and thinner laminate steel, cost more to make.

FORBES: Electric-Motor Business Goes Into High Gear

At nearly 14%, the efficiency of the thin-film panels which are made from copper, indium, gallium and selenium (CIGS), is close to that of silicon, albeit being much cheaper to produce.

FORBES: 14% Efficiency for Thin-Film Solar Cells, but Where Will the Indium Come From?