For example, using Shell Helix Ultra low viscosity motor oils can improve a car's fuel efficiency and thereby reduce CO2 emissions.
例如，使用壳牌超低粘度机油可以提高汽车的燃油效率，从而减少二氧化碳的排放。
The helix seal was put forward to be used in ultra-micro gas turbine (UMGT) system for reducing gas leakage.
提出将螺旋密封应用于超微燃气透平气体介质密封。
The helix seal was put forward to be used in ultra-micro gas turbine (UMGT) system for reducing gas leakage.
提出将螺旋密封应用于超微燃气透平气体介质密封。
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