When his mouth is soft and mobile, it is a good bet that his jaw is relaxed.
当他的嘴是柔软的运动时，能够非常确定他的下颚是放松的。
2
This is a soft nickel-based alloy used for making dental crown and bridge. Since is relatively soft, it can reduce wear of paired jaw teeth. Its processing is easy.
这是一种镍基软质合金，用于铸造冠、桥，因合金质软所以减轻对颌牙磨损，易操作。
3
This is a soft nickel-based alloy used for making dental crown and bridge. Since the alloy is relatively soft, it can reduce wear of paired jaw teeth. Its processing is easy.