Fertilization to promote scientific grasp of nitrogen, phosphorus and potassium ratio and the amount of co-ordination.

提倡测土配方施肥，科学掌握氮、磷、钾的配合比例与用量。

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The high potassium-to-sodium ratio helps to neutralize the blood pressure-rising effect of sodium in the diet.

钾对于纳的比率很高这有助于控制由于饮食中的钠而引起的血压上升。

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Thirdly, the relationships between electric conductivities of potassium chloride solutions and temperature and molar ratio are studied.

三是研究了氯化钾溶液的电导率随温度和浓度变化的关系。

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Using Argon-argon dating - a technique based on the decay ratio of radioactive potassium - researchers at the University of California Berkeley and the University of Glasgow have revised both the date of the dinosaur extinction 66 million years ago, and the timing of the Chicxulub asteroid impact that occurred at around the same time.

BBC: Keeping up with the Jinzhousauruses