noun🔗Share硬度，坚硬度。 The quality of being hard."The hardness of the diamond makes it ideal for cutting glass. "钻石的硬度使得它非常适合切割玻璃。qualitymaterialChat with AIVocabulary GamePractice Reading
noun🔗Share艰难，困苦 An instance of this quality; hardship."The recent loss of her job added another layer of hardness to her already difficult life. "最近失业的打击，在她原本艰难的生活中又增添了一层困苦。qualityconditionsufferingChat with AIVocabulary GamePractice Reading
noun🔗Share水的硬度，钙含量 The quantity of calcium carbonate dissolved in water, usually expressed in parts per million (ppm)."The water softener increased the hardness of the tap water, making it easier to wash dishes. "软水机增加了自来水的硬度，让碗更容易洗干净了。(Ruan shui ji zeng jia le zilai shui de yingdu, rang wan geng rongyi xi ganjing le.)chemistrysubstanceenvironmentgeologyChat with AIVocabulary GamePractice Reading
noun🔗Share硬度，坚硬程度 The resistance to scratching, cutting, indentation or abrasion of a metal or other solid material."The diamond's exceptional hardness makes it ideal for cutting glass. "钻石非凡的硬度使得它成为切割玻璃的理想材料。materialqualitytechnicalscienceChat with AIVocabulary GamePractice Reading
noun🔗Share穿透力 The penetrating ability of electromagnetic radiation, such as x-rays; generally, the shorter the wavelength, the harder and more penetrating the radiation."The hardness of the X-rays used in the dentist's office allows them to pass through your teeth and show the dentist any problems. "牙医诊所使用的X光之所以能穿透你的牙齿，让牙医发现问题，就是因为它们具有很强的穿透力。physicsenergytechnologyscienceChat with AIVocabulary GamePractice Reading
noun🔗Share坚固性，抗毁性. The measure of resistance to damage of a facility, equipment, installation, or telecommunications infrastructure when subjected to attack."The military base's hardness was tested against simulated bombing runs to assess its ability to withstand an actual attack. "为了评估军事基地在真实袭击中的承受能力，对其坚固性和抗毁性进行了模拟轰炸测试。militarytechnologybuildingwarChat with AIVocabulary GamePractice Reading
