They are most suitable when used in combination with the quick - acting chemicals.

要是与快速作用的化学药品合用,它们是最合适的.

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Its quick acting performance of the whole governor is incomparable to other servo driving system.

其整机的速动性能是其他伺服驱动系统无法相比拟的.

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Organic fertilizers are slow - acting. They can be used in combination with quick - acting chemicals.

有机肥是慢效肥料, 可以和速效化肥结合使用.

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