diamond is the hardest known mineral. it is a high-symmetry allotrope of carbon (c). it has a mohs “scratch” hardness of 10, which makes it the hardest mineral. mohs hardness is a rough measure of the resistance of a smooth surface to scratching or abrasion, expressed in terms of ...
Investigates the ICU patient's examination amount of blood loss, loses blood the reason from the examination diagnostics angle analysis, seeks the countermeasure.The method is the padding takes the patient material from hospital LIS, the statistical in hospital date, the total amount of blood loss,...
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ado have left;the least 离开; 最少[translate] aail over 痛苦[translate] aI guess that the hotel takes credit cards (for food and rooms), so I'll will empty :-) an ATM in Shanghai to pay the rest. 我猜测旅馆作为信用卡 (为食物和房间),因此我将愿空:-) ATM在支付休息的上海。[transla...
Although carbon is the hardest pure element, metals generally are hard. Another nonmetal (boron) also has a hard allotrope. Here is the Mohs hardness of some other pure elements: Boron: 9.5 Chromium: 8.5 Tungsten: 7.5 Rhenium: 7.0 Osmium: 7.0...
Diamond is what we often call diamond (diamond is its common name), it is a mineral made of pure carbon Diamond is the hardest material in nature, so it has many im
Hardness is a relative term when referring to materials, both metal and non-metal. In general, hardness involves a high melting point, scratch resistance, and high resistance to deforming under pressure. Chromium is among the hardest metallic elements, c
It is the relative ability of one material to wear, abrade, deform or indent another material. Hardness is measured on some relative scale such as Moh’s, Rockwell, Vickers scales. The diamond is the hardest material known to man at this writing; all other materials have their hardness ...
The Mohs Hardness Scale is a standard that indicates the hardness of minerals. It was first proposed by German mineralogist Frederich Mohs in 1822.
Steel is harder than copper so we use steel tools to cut copper pipes. Noun(en noun) (South Africa) Any of several species of mullet often used to make bokkoms.--- hardest English Adjectivehardest (hard) Most rigid or most difficult. Diamond is the hardest natural material. The hardest...