The incidence of gallstones increases progressively with age.胆石症的发病率随年龄而逐渐增高.Objective To evaluate collodion - enhancing technique for thin paraffin sections of the gallstones.目的:评估火棉胶增强技术在胆囊结石切片中的应用.Gallstones are forme...

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The headstones were tilted.这块墓石是倾斜的.Lines of simple white headstones mark the graves.一排一排的白色墓石勾勒出这座公墓.The Chinese characters are barely visible etched into the headstones and burial bricks.刻在墓碑上的汉字几乎已经无法辨认....

Tombstones jutted out of the ground in broken clusters.墓碑三三两两地竖立在地面上。All that money for tombstones!所有这些花在墓碑上的钱都是白费了!The skull - and - crossbones crudely carved on the first tombstones was replaced by a winged cherub.最初粗糙...

The fossils at Dinosaur Cove are embedded in hard sandstones.恐龙峡谷中的化石都嵌在坚硬的砂岩中。Alternating sandstones and shales are regarded as important.蚀变的砂岩和页岩是很重要的.The coarsest sandstones intercalated with grey mudstones.最粗粒砂岩与灰色泥岩...

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