詞語：graptolite
graptolite的解釋
graptolite['ɡræptəlait]n.【古生物】筆石(古腔腸動物，現存化石)
graptolite的意思
graptolite 筆石;筆石綱;graptolite facies 筆石相;
graptolite的參考例句
1.These provide base for the correct measurement and valuing of graptolite reflectivity. 從而為筆石反射率的正確測定和取值奠定了基礎。
2.In Cenxi district, Silurian System belonging to geosynclinal sedimentary is clastic rock series with subabyssal－ abyssal graptolite facies－ neritic bfrachiopodous facies; 廣西岑溪地區志留系為半深、深海筆石相－濱淺海腕足相的碎屑巖地層序列，屬地槽型沉積產物；
3.These 22 points are divided into two groups, which, represent respectively, two graptolite types in the early ordovician, namely, the South China type and the Central China type. 在平面圖中，22個點可劃分為2個點群，分別代表中國早奧陶世的兩大筆石動物群，即華南型筆石動物群和華中型筆石動物群。