Moves to cut carbon emissions in line with international targets have come under renewed strain since the nuclear crisis in Japan led some countries to shelve plans to use the technology.
The initial portion of the stress-strain diagram for most materials used in engineering structures is a straight line.
在工程结构中使用的大部分材料最初的应力应变图是直线型的。
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'(it) appeals to anyone who has queued for hours outside a crowded restaurant: it eliminates the tedium and physical strain of standing in line,' it added.