合约铁矿石价格上涨将使巴西淡水河谷、力拓和必和必拓的盈利大增。
Gains in contract iron ore prices will boost profits for Brazil's Vale SA, Rio Tinto Group and BHP Billiton Ltd., the three-biggest iron ore exporters.
这话题的出现，是因为当时我的注意力集中在一九八三开始盛行的承包责任合约。
The issue cropped up when I turned my attention to the so-called responsibility contract, which emerged in China in early 1983.
一个独特的2片联合之间的车轴和车轮，同样的极端车轮转角分为两个较浅的角度而不联合约束力。
With a unique 2-piece joint between the axle and the wheel, the same extreme wheel turning angle is divided into two shallower angles without joint binding.
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