英语语法分析

When this occurs cancellous bone comes compact bone.

当这种情况发生时，松质骨变成密质骨。

Cancellous stone: water stone, flower, pumice, coral rock, etc.

松质石料：吸水石、芦管石、浮石、珊瑚石等。

Cancellous stone good water imbibition, briefly carved shape processing.

松质石料的吸水性好，简略加工雕刻外型。