所幸一个用来计算海豹年龄的方式—数牙齿内的生长层(growth layers)—，可以同样的 我梦到一条巨大的橙色满身白色点点的鲸鱼我梦到一条巨大的橙色满身白色点点的鲸鱼和他的孩子一起向我游过来，（...
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layers growth 镀层生长
Dendrochronology is the science that deals with the dating and study of annual growth layers in wood.
树轮年代学是一门研究树木木质部年生长层，以及利用年生长层来定年的科学。
Like trees, stalagmites are often composed of concentric layers that represent annual growth periods.
同树木一样，石笋通常也有能显示其年生长周期的年轮。
To observe the mouse blastocyst growth behavior on primary mouse embryonic fibroblast feeder layers (PMEF).
观察鼠囊胚在小鼠原代胎儿成纤维细胞饲养层上的生长行为。
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