The surface reactivity of many nonblack fillers generally precludes strong bonding with this type of matrix.许多非碳黑填料的表面反应性一般阻碍与该种基质形成牢固的粘结.Cortical grafts, whether autogeneic or allogeneic, at least initially act as weigh...
雾霭蒙蒙，白金汉宫若隐若现。Mist shrouded the outline of Buckingham Palace.蒙蒙雾霭笼罩着山谷,遮掩了群山.Heavy mists hung in the valley and obscured the mountains.笼罩山谷的雾霭散去了.The mist shrouding the walley had lifted....