noun 下载 🔗分享 硬度，坚硬度。 The quality of being hard. Examples : "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。 quality material 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 艰难，困苦 An instance of this quality; hardship. Examples : "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。 quality condition suffering 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 水的硬度，钙含量 The quantity of calcium carbonate dissolved in water, usually expressed in parts per million (ppm). Examples : "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.) chemistry substance environment geology 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 硬度，坚硬程度 The resistance to scratching, cutting, indentation or abrasion of a metal or other solid material. Examples : "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。 material quality technical science 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 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. Examples : "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。 physics energy technology science 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 坚固性，抗毁性. The measure of resistance to damage of a facility, equipment, installation, or telecommunications infrastructure when subjected to attack. Examples : "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。 military technology building war 与AI对话词汇游戏阅读练习
