在这个案例里，腐蚀速率图、电阻率、半电池电位存在着很好的相关关系。
In this case there is a rather good correlation between resistance, half-cell potential and corrosion rate mapping.
混凝土中钢筋的腐蚀是一个电化学过程，而半电池电位是判断钢筋状态的重要依据。
The corrosion of the reinforcing steel in concrete is an electrochemical process, and the half-cell potential is on of the utmost characters in estimating the condition of the rebar.
未被利用的阳光和电池本身的低效率产生的热量导致一半以上的抵达到电池的原始太阳能损失掉了。
This heat from unused sunlight and inefficiencies in the cells themselves account for a loss of more than 50 percent of the initial solar energy reaching the cell.
Gaines 研究表明如果锂离子电池能够有效回收利用，用于生产锂离子电池的锂需求将会减少一半。
典型锂离子电池中一半的材料在电池内部的化学反应方面起不到任何作用。
About half of a typical lithium-ion battery is made of stuff that plays no direct part in the battery's chemistry.
目前市场上有许多种产品，2006年发电应用占全部商业燃料电池销售的一半以上。
With a number of products now on the market, electric power generation applications accounted for well over half of all commercial fuel cell sales in 2006.
然而，占领现在由其他能源支配的市场还需假以时日。2016年商业需求仍将仅占全部燃料电池消费的一半以下。
However, it will take time for fuel cells to penetrate markets now served by other power sources, and commercial demand will continue to account for less than half of all fuel cell spending in 2016.
他说他的电池经常死机，在早些比赛的前一半还有持续的音频问题。
He says his batteries were dying left and right and audio was a persistent problem in the early half of the race.
当然，说到汽车充电，插头的一半是电池，一半是插座。
Of course, when it comes to car-charging, plugs are only half the battle; the other half is sockets.
另外，这种神奇的解决方案可以提供铅酸电池十倍的电量，没有有毒原料没有化学危害，而且价钱只有铅酸电池的一半。
Moreover, this miracle-working solution is said to produce "ten times" the power of lead-acid batteries at half the cost, sans the need for "toxic materials or chemicals."
加州PaloAlto电力科学研究院研究指出现今压缩空气能源储存的成本是铅酸蓄电池的一半左右。
Studies by the Electric Power Research Institute in Palo Alto, Calif., indicate that the cost of compressed-air energy storage today is about half that of lead-acid batteries.
Gaines研究表明如果锂离子电池能够有效回收利用，用于生产锂离子电池的锂需求将会减少一半。
Gaines' research found that the amount of lithium needed for some types of lithium-ion batteries could be cut in half if those batteries are effectively recycled.
相关分析师统计，自2007年以来，太阳能电池板的价格已经跌了一半。 由三年前的3.7$/w跌至现在的1.8$/w。
Solar panel prices have halved since 2007, say analysts, at about $1.8 per watt at the end of 2010 compared with $3.7 three years earlier.
以太阳能电池板70%的产能替代10亿瓦的火电站运行，大约需要相当于去年全球安装的6gw的一半的装机容量。
To replace a one-gigawatt coal plant running at 70% of capacity with solar panels would require about half of the 6gw installed worldwide last year.
另外，提升后的储存容量可以在维持电流驱动范围的同时，使得电池组的尺寸缩减一半，这将使得电动车相当便宜。
Alternatively, the improved storage capacity could be used to cut the size of battery packs inhalf while maintaining the current driving range, making electric vehiclesconsiderably cheaper.
我们在晚上为电池充电，可以降低一半的能源成本。
We charge the batteries during the night, which can cut energy costs in half.
德国最大的太阳能多晶硅电池生产厂商Q -Cells(多晶硅制造是介于精制硅和成本太阳能之间的工序)，其市场价值在过去的一年已经下跌一半。
Q-Cells, Germany's largest wafer manufacturer (the wafer is the step between the refined silicon and the finished solar cell) has seen its market value drop by half over the past year.
这样的提升将减少太阳能设备里太阳能电池板一半的数量，大大降低了安装成本。
Such a boost would cut the number of solar panels for some installations almost in half, greatly lowering installation costs.
换句话说，行驶相同的距离，使用燃料电池发动机汽车只需要消耗内燃机汽车的一半能量。
In other words, the fuel-cell powered car requires only half the fuel energy that the internal-combustion powered car does to go the same distance.
这种燃料电池能把几乎所有碳氢化合物燃料转化为电力而不需要燃烧过程，因而温室气体的产生也就只有通常电厂的一半。
The fuel cells can convert almost any hydrocarbon fuel into electricity without combustion, and the greenhouse gas production is half of that from conventional energy sources.
在声控或振动的节能模式下，3节七号电池可以使用一年半。
In the voice or vibration of the energy-saving mode, the 3 AAA battery can be used more then half year.
举例来说，从1997 ~ 2004年，混合车使用的镍氢电池价格降低了一半，重量也减轻一半。
From 1997 to 2004, for example, the price tag for the nickel metal hydride batteries used in hybrids dropped by half, as did their weight.
目前，制造电池组的价格不及合计安装费用的一半。
Right now the cost of making panels accounts for a little less than half the total cost of installation.
通常电池只能运行最多12小时，故这类潜艇大部分间用柴油发动机推进。潜艇浮出水面或半浮出水面（使用二战时德国首先采用的Schnorkling装置）时必须用柴油发动机。
Normally, battery power is only good for a up to twelve hours of operation and such subs spend most of their time propelled by their diesel engines.
他认为，这些美国公司占有这些材料的一半市场，提供太阳能电池组件20%的价值。
S. companies have half the market for these materials, and are thus supplying about 20% of the value of solar modules.
他认为，这些美国公司占有这些材料的一半市场，提供太阳能电池组件20%的价值。
S. companies have half the market for these materials, and are thus supplying about 20% of the value of solar modules.
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