They want to lock in sources of supply.
他们想锁定矿石供应来源。
This would also diversify sources of energy supply.
这样做还可以使能源的资源供应多样化。
The accessibility analysis of joint operation of heat-supply systems with double heat sources is made.
对双热源供热系统联网运行进行了可及性分析，制定了最佳运行方案。
The supply pumps enable water may be drawn from a number of sources.
所述供给泵使水可以从多个水源抽吸。
The supply pumps enable water may be drawn from a number of sources.
所述供给泵使水可以从多个水源抽吸。
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