The hydraulic valve auxiliary control unit (12) can be connected and cut off by means of an additional auxiliary oil circle (3) related to a main oil circle (2) of the internal combustion engine (1).
液压气门辅助控制单元（12）可借助于一相对于内燃机（1） 的主油回路（2）附加设置的辅助油回路（3）接通和切断。
Obama's promise to create a green-energy industry to help reduce the nation's dependence on foreign oil has alternative energy in everyone's winner's circle, despite recent sell-offs in the sector.
奥巴马承诺将建立一个绿色能源产业以减少这个国家对外国石油的依赖，这就让所有人都把替代能源放在了赢家圈子里，尽管最近该行业股票被大量抛售。
Exploration and drilling for oil and gas have become easier as climate change forces the ice to retreat, and all countries with borders inside the Arctic circle are fighting to claim their share.
全球变暖迫使冰层消退给石油和天然气的勘探和开采带来方便，边境在北极圈内的所有国家正在认领属于各自的地盘。
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