鲛
- 名shark
![鲛](../cache/1189997.jpg)
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〔~鱼〕即“鲨鱼”。
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〔~人〕神话传说中生活在海中的人,其泪珠能变成珍珠。亦作“蛟人”。
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〔~绡〕神话传说鲛人所织的绡,极薄,后用以泛指薄纱。
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(鮫)
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与天然气伴生的凝析油具姥鲛烷优势,Pr/Ph高达4~8;
A predominant pristane content in the condensate associated with the gas , Pr / Ph being high to 4 ~ 8 ;
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甲醇馏分(F)中主效化感物质为降姥鲛酮-2、棕榈酸甲酯、邻丙基-苯壬酸甲酯等长链脂肪酸系列化合物。
Methanol components ( F ) mainly identified the validity of allelochemicals basking Jiao ketone - 2 , and hexadecanoic acid methyl ester , propyl - benzene nonane fatty acid methyl ester compounds tubes chain series .
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有时被认为是鹪鹩科的一个亚科;嘲鸫;猫鹊;长尾鲛。
Sometimes considered a subfamily of troglodytidae : mockingbirds ; catbirds ; thrashers .
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这一大群沙丁鱼被一条戟齿砂鲛随尾
this huge shoal of sardines is shadowed by a ragged tooth shark .
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他取出一个鲛皮小匣子。
He takes out a little shagreen case .
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液态正构烷烃系列、姥鲛烷、植烷碳同位素初步研究
A primary study on carbon isotope of n-alkane , pristane and phytane in crude oil
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近代海洋沉积物(层)中姥鲛烷/植烷比值及其地球化学意义
Pristane / phytane ratio in recent marine sediment ( sedimentary layer ) and its geochemical significance
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一天,苏立文小姐从浅滩捕获了一条姥鲛似的东西,这种奇异的物种引起了我的注意。
One day Miss Sullivan attracted my attention to a strange object which she had captured basking in the shallow water .
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人人都知道沙丘长尾鲛会从沙地下发起攻击,我们在岩石上很安全!
Everyone knew that the dune threshers attacked from under the sand , and that we were safe upon the rocks !
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可期待产出与Ef~2泥岩相对应的,姥鲛烷/植烷<0.5,β-胡萝卜烷和伽马蜡烷含量较高的原油。
Oil from Ef ~ 2 shale and having Pr / Ph 〈 0.5 and higher content of β - carotane and gammacerane can be expected .
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未成熟生油岩按姥植比划分为两型,即植烷优势型生油岩和姥鲛烷优势型生油岩。
According to the ratio of pristane / phytane , the immature source rocks are divided into two ty - pes : source rock of phytane type and source rock of pristane type .
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黄土高原西峰黄土/古土壤剖面过去130kyr正构烷烃组分的平均氢同位素组成变化为-140‰~-190‰。金川泥炭地正烷烃和姥鲛烷分布特征与环境演变关系研究
The δ D values of the n-alkanes from Xifeng loess profile spanning the last 130 kyr show large variations for the past 130 kyr , ranging from-140 ‰ to-190 ‰ . The Study on Relationship between the Distribution of N-alkanes , Pristane and Environment Change in JinChuan Peatland