详细解释
钾
1、碱金属族的一价金属元素,呈银白色,质软,有光泽,熔点低,比钠更活泼,在空气中很快氧化,与水激烈反应,放出氢气而自行着火,主要用作还原剂及用于合成中 ——元素符号K。
例句
这些化合物可以调节钾的功效。
These chemicals modulate the effect of potassium.
水果、蔬菜和全谷物富含钾。
Fruits, vegetables, and wholegrains are rich in potassium.
食品中钾的含量是多变的。
The potassium content of foodstuffs is very variable.
西瓜含有维生素也有钾。
Watermelon contains vitamins and also potassium.
钙能与水产生化学反应但不如钠以及钾那么剧烈。
Calcium reacts with water but less violently than sodium and potassium do.
减少含钠元素的饮食而增加含钾元素的饮食可以减轻眼睛浮肿。
Reducing sodium in the diet and getting more potassium rich foods can help to reduce puffy eyes.
2004年，一个探索机器人发现了黄钾铁矾。
In 2004, an exploration robot discovered jarosite.
但地球上黄钾铁矾的晶体结构中含有各种微生物。
But jarosite on Earth incorporates all kinds of microorganisms into its crystalline structure.
黄钾铁矾是一种黄褐色的矿物，它的晶体结构也存在于地球上。
Jarosite is a yellowish-brown mineral with a crystalline structure that's also found on earth.
这是用于建造房屋、家具、船只、钾碱、染料和海军用品的原材料。
Here was the raw material of houses and furniture, ships and potash, dyes and naval stores.
在地球上形成黄钾铁矾的其中一个步骤涉及到微生物；实际上，微生物能大幅加快黄钾铁矾的形成。
One step in its formation on Earth involves microorganisms; they actually speed up the formation of jarosite dramatically.
如果火星上的黄钾铁矾也是在微生物的帮助下形成的，我们就有可能在所找到的样品中发现它们的残留物。
It's possible that if the jarosite on Mars was also formed with the help of microorganisms, we might be able to detect remnants of them in the samples we find.
由于大多数行星科学家认为水是生命的基本要素，因此黄钾铁矾的存在意味着火星上曾经存在出现生命的先决条件之一。
Since most planetary scientists believe that water is essential to life, the presence of jarosite means that one prerequisite for life was once present on Mars.
研究了叔丁醇钾溶液在无水条件下对羊毛的处理。
The treatment of wool under anhydrous conditions with potassium tert-butoxide solution is studied.
钠钾泵维持钠钾平衡。
Sodium-potassium balance is maintained by the sodium potassium pump.
无论在低钾还是高钾条件下，冠菌素可以像生长素一样促进棉花侧根的发生。
Coronatine, like auxin, can enhance the lateral root formation under whether low K or high K.
它们含有丰富的纤维、钙、钾和铁。
They're full of fiber, calcium, potassium, and iron.
选择含有氮，磷和钾的肥料。
Choose a fertilizer that contains nitrogen, phosphorus, and potassium.
蚕豆被认为是磷、铜和钾的较好来源。
Broad beans are considered a good source of phosphorous, copper and potassium.
它当中的钾能维持心率正常和降血压。
The potassium in these veggies also keeps your heartbeat in sync and your blood pressure down.
这里的离子指的是钾离子。
In this case, the ion is potassium.
它富含纤维、钙、钾和铁。
They're full of fiber, calcium, potassium, and iron.
它们也是镁和钾重要来源。
They're also a good source of both magnesium and potassium.
大豆还含有相对较高的钙、铁、叶酸和钾。
Beans also contain relatively high amounts of calcium, iron, folic acid and potassium.
(钾生产约4太瓦)。
Potassium produces about 4 terawatts.
这样碳酸钾的需求量就非常巨大。
Hence the big demand for potash.
“低钾高钠的摄入会导致高血压，”鲍登说道。
"Low potassium and high sodium intake can cause high blood pressure," Bowden says.
我要说的是，你们应该知道，钾是在钠的下面的。
And I say, no, I think any of you should know that potassium lies under sodium.
铯- 137很容易与水混合，其化学性质很像钾。
Cesium-137 mixes easily with water and is chemically similar to potassium.
酸奶、牛奶、水果和蔬菜通常含钠较少而含钾较多。
Yogurt, milk, fruits and vegetables tend to have less sodium and more potassium.