铝合金锻件中有时有未锻合的疏松和残留的枝晶自由表面，并保留有原始的结晶台阶。
Unhealed porosities and free surface of dendrites with crystalline steps were occasionally observed in aluminium alloy forgings.
这一化石形成的时代是羽毛或类似羽毛的附属物开始出现的时代，但是这种恐龙来自一个更加原始的进化枝。
The fossil dates from a time period when feathers or feather-like appendages have been seen, but the dinosaur is from a branch of the evolutionary tree that is more primitive.
WC原始颗粒以各种复式碳化物的形式析出，分别形成枝状或鱼骨状共晶碳化物、网状二次碳化物及大块状碳化物。
Multiple carbides are precipitated from WC particles, which form many different shapes such as dendrite or fishbone eutectic carbide, reticulation secondary carbide and conglomeration carbide.
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