The reason those shells don't dissolve back into calcium and carbonate as soon as they're built is that ocean water is already holding as much calcium and carbonate as it can, so the mineral forms much more easily than it dissolves.那些贝壳之所以没有一建成就重新溶解成钙和碳酸盐，是因为海水...
aYou never know, how much for those who you want to love you? 很难说,多少为您要爱您的那些人?[translate]
Mine has been going well.My school life is very busy,but it is still filled with fun.Last Friday,in my Earth and Space Science class,my classmates and I made our own toothpaste(牙膏).The class was to help us understand the importance of calcium carbonate(碳酸钙) and sodium bicarbonate(...
liquids or in solution, and how much of each reactant is present affects how fast the reaction proceeds. Often there is more than enough of one reactant, and the rate of the reaction depends on the other reactants present. Sometimes the rate of ...
How Much Calcium Do You Need? So, how do you know if you’re getting enough calcium in a day? Here are the Recommended Dietary Allowances, divided by age and sex.1 During pregnancy and lactation, getting the same allotted amount within their age bracket is recommended.If you’re not sur...
aI realized that I was one paycheck away from being homeless myself. 我意识到我是一张支付薪金支票从是无家可归的我自己。[translate] acalcium carbonate 碳酸钙[translate] aHow much is a dish of plain ice cream?” he required. 多少是简单的冰淇凌盘?” 他需要。[translate]...
but so cool but so much older tha but soluble in alcoho but some of those of but somehow i canampt but someone in a worl but something went wr but soon but soon die but south ossetia and but speaks english but still annoying but still approachabl but still too many but such but sud...
a它是由一定比例的架桥粒子和刚性粒子超细碳酸钙组成 It is composed by certain proportion bridging granule and the rigid granule superfine calcium carbonate[translate] asend error是什么意思 send error is any meaning[translate] a10 LBS 10磅[translate] ...
Blowing is the oldest method of working with glass, dating back thousands of years. A ball of molten, or melted, glass is put on the end of a hollow iron pipe, and a worker blows gentle into the pipe (much like the way you blow soap bubbles) until the glass takes the ...
The processing of heavy calcium carbonate is mainly realized by mechanical crushing and grinding; the production of light calcium carbonate is made by chemical reaction precipitation, which is much more complex than heavy calcium carbonate, and the requirements are correspondingly more strict. Therefore,...