1. Our quality and service orientation of the slogan is: precision, hardness and speed. 我们的品质口号和服务方向就是：精度、硬度、速度。
2. The coating of cement with a strong penetration and excellent adhesion, high hardness, good adhesion between the layers. 该涂料对水泥具有极强的渗透力和极好的附着力，硬度高，层间附着力好。
3. Uses in each kind of medium degree of hardness solid material , in cement industry, limestone in broken bits , paste , chamotte, and so on mix material . 第三代新型制沙机主要用于各种中等硬度固体物料的细碎，在水泥工业中，细碎石灰石、石膏、熟料、混合材等。
英英解释
n.
1. the property of being rigid and resistant to pressure; not easily scratched; measured on Mohs scale
2. devoid of passion or feeling; hardheartedness
3. the quality of being difficult to do
4. excessive sternness
