在奥陶纪，大多数生命都生活在海洋里，所以海洋生物，例如三叶虫、腕足类动物与笔石动物的数量在此时急剧减少。
During the Ordovician, most life was in the sea, so it was sea creatures such as trilobites, brachiopods and graptolites that were drastically reduced in number.
该笔石动物群属于华南型的珠江亚型，具有典型的太平洋型动物群的特点。
The graptolite fauna belongs to the Zhujiang sub-form of Huanan form with typical characteristics of the Pacific graptolite fauna.
应用反射率十字图解研究了中国部分地区下古生界地层中动物有机碎屑笔石的光学各向异性。
The optical anisotropy of zooclast graptolite in some Paleozoic strata of China has been studied using reflectance cross-plot analysis.
国内外海相大油气田的烃源岩均为粘土矿物含量较高的笔石页岩、油页岩和泥灰岩，形成于由台地向海槽过渡的深水斜坡环境。
High content clay mineral shale, oil shale and marlite are the main source rocks for large oil or gas fields in the world, which formed in deep water slopes between platform and open sea.
苦难对于人生是一块垫脚石，对于能干的人是一笔财富，对于弱者是个万丈深渊。——巴尔扎克。
Suffering is a stepping stone for life, for is a wealth of talented people, for the weak is an abyss. - Balzac.
这只手足够强大，能够举起14石的负重，同时也功能多多，使得马修可以握住一支笔进行绘画和书写、绑鞋带和抓起一个球。
The hand - strong enough to hold a 14-stone load - is also so versatile that Matthew can grip a pen to draw pictures and write, tie his shoe LACES and catch a ball.
这只手足够强大，能够举起14石的负重，同时也功能多多，使得马修可以握住一支笔进行绘画和书写、绑鞋带和抓起一个球。
The hand - strong enough to hold a 14-stone load - is also so versatile that Matthew can grip a pen to draw pictures and write, tie his shoe LACES and catch a ball.
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