The gold metallogeny is characterized by auriferous pyrite and occurred in the alternating layer of heavy-layer metasandstone, flaggy metasandstone and graphitization schist.
金矿化以含金黄铁矿为特征，产出于盖县组变质砂岩段厚层状变质砂岩、薄层状变质砂岩和石墨化片岩的互层带中， 矿体产状与地层一致；
Alternating the grain directions of each layer of timber reduces many of the weakness that previous timber products had.
交替各方向纹理的木材层，减少了很多以前木材制品的弱点。
If there is a large difference in the coefficient of expansion, there will be cracks in the ceramic layer or the phenomenon of exploding porcelain in the alternating heat and cold.
如果膨胀系数相差较大，在冷热交替的时候就会出现瓷层裂纹或爆瓷现象。
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