lapillus 中文意思是什麼
lapillus
解釋
n. 名詞 （pl. lapilli ） 【地質學；地理學】火山礫。-
Lapilus and asteriscus can both be used for ageing and the percent agreements within the error of ? 1 annuli for annulus readings between it and lapillus were 100 %, but sagitta is not suitable for ageing because it is fragile
微耳石和星耳石可用於鑒定年齡，誤差在1輪以內的吻合率為100 ；而矢耳石易碎。不適合鑒定年齡。 -
The interpretability of four kinds of ageing materials are as follows : sectioned dorsal fin spine > sectioned lapillus > scale > vertebra. sectioned dorsal fin spine is the best material in ageing of the fish less than eight years. as for the fish elder than eight years sectioned lapillus is the reliable ageing material that had more annulus readings than scale, dorsal fine spine and vertebra
對8齡以下個體，用背鰭條磨片鑒定年齡效果最佳；對8齡以上個體，臀鱗、背鰭條磨片和脊椎骨上的年輪計數明顯低於微耳石磨片，微耳石磨片上的年輪計數最高，是高齡青海湖裸鯉可靠的年齡鑒定材料。
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