UP总硬度（General Hardness）测试剂以最简易的方式，在最短的时间内就可以轻松判读出水中的总硬度值，提供玩家一个正确的水质依据，来建立一个最正确的水质环...
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Higher quality tiles general hardness, toughness, and not easily broken.
优质的瓷砖一般硬度较高，韧性强，不易破碎。
General Stamping elbow in a high carbon content is greater hardness, higher strength, but low plasticity.
一般冲压弯头中含碳量较高则硬度越大，强度也越高，但塑性较低。
The experimental results have shown that the hardness, wearability, strength of general components used HT300, and the results also provide a basis for improving the surface properties of components.
结果表明经激光处理后，其表面强度满足了HT300用于一般零件对表面硬度、耐磨性等机械性能的要求。
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