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1·He must have come to know those philosophers through secondary or tertiary sources.

他一定是通过第二手或第三手资料了解那些哲学家的。《柯林斯英汉双解大词典》

2·The Tertiary Period was separated into division of time that were equal in length.

第三纪被划分为等长的时间单位。

3·This change in plankton found in marine deposits is what marks the boundary between the Cretaceous and the Tertiary.

海洋沉积物中浮游生物的这种变化标志着白垩纪和第三纪的分界线。

4·Charles Lyell made a good estimate of the Tertiary Period from the fossil record, but his method could not be extended to earlier geological periods.

查尔斯·莱尔根据化石记录对第三纪作出了很好的估计，但他的方法不能扩展到更早的地质时期。

5·In many countries, part-time studying is not exceptional: on average across OECD countries, part-time students in 2016 represented 20 percent of enrolment in tertiary education.

在许多国家，半工读并不罕见。2016年经合组织（OECD）成员国半工读学生人数平均占高等教育入学人数的20%。

6·Jobs are mainly created by the tertiary industry.

工作岗位现在最主要是靠第三产业创造。

7·Tertiary aromas: from ageing in the VAT, barrel or bottle.

第三类香气：来自木桶、酒桶或酒瓶陈年过程。

8·Management staff in tertiary education accounted for more than 70%.

管理人员中大专学历以上的占70%。

9·As a tertiary benefit, the louvers provide privacy from the street.

而第三个好处在于：百叶窗提供隐私面向街道空间的隐私。

10·This technique has broad application prospects in tertiary oil recovery.

在三次采油中，该项技术有广阔的应用前景。

第三的

1·He must have come to know those philosophers through secondary or tertiary sources.

他一定是通过第二手或第三手资料了解那些哲学家的。《柯林斯英汉双解大词典》

2·There is nothing new about this as a long-term economic goal, but in recent years there has been a growing policy emphasis on the industrial and (especially) tertiary sectors.

这个策略作为一个长期的经济目标已是老生常谈，但是，近年来，该国在政策上越来越强调工业和(尤其是)第三产业。

3·The value-added of tertiary industry rose 9.5% to 12.05 trillion yuan in 2008, the first time since 2003 that it grew faster than secondary industry.

第三产业增加值达到12．05万亿元，比上年增长9．5％，2003年以来增幅首次超过第二产业。

4·Tertiary aromas: from ageing in the VAT, barrel or bottle.

第三类香气：来自木桶、酒桶或酒瓶陈年过程。

5·Tertiary industries-the segment of the economy that provides services to consumers, such as financial institutions, schools and restaurants-generally accommodate more jobs.

第三产业，如金融机构、学校和餐饮业，致力于为消费者提供服务，通常能提供更多的工作岗位。

叔

1·Modifier CM is synthesised by tertiary amine and epoxy chloropropane for improving properties of cellulose fibre.

纤维素纤维改性剂CM系由叔胺与环氧氯丙烷合成。

2·Some of phenol compound and oxygen containing compounds with tertiary butyl group were screened to use as gasoline antiknock additives.

在实验过程中筛选出几种酚类化合物和叔丁基含氧化合物等作为汽油抗爆添加剂。

3·The study results of the toxicity of methyl tertiary butyl ether (MTBE) were reviewed.

对国内外有关甲基叔丁基醚（ MTBE） 毒性的研究结果作了综述。

4·The foam stability experiments showed that the tertiary amine oxide is a good new foam stabilizer.

泡沫稳定实验显示氧化叔胺是一种较好的新型泡沫稳定剂。

5·Methyl tertiary butyl ether (MTBE), a new gasoline additive, is added to gasoline as an octane enhancer and used to reduce automotive emissions.

甲基叔丁基醚(MTBE)是一种新型的汽油添加剂，被用来提高汽油辛烷值和减少汽车尾气中有害物质的排放。

第三纪

1·The Tertiary Period was separated into division of time that were equal in length.

第三纪被划分为等长的时间单位。

2·The three-hour guided visits are a walk through time, along a well-designed nature trail past a wealth of exposed fossils dating as far back as the Tertiary, some 40 million years ago.

这三个小时的参观是一次时间漫游，沿精心设计的自然路径以此经过大量的可以追溯到大约4千万年前的第三纪的暴露的化石。

3·This 65.5-million-year-old layer of Earth separates fossils of the Cretaceous period from those of the Tertiary period.

这个有着6550万年历史的地层分离了白垩纪的化石和第三纪的化石。

4·From the Cretaceous to Tertiary, fault sealing built up with thickening of the overlying strata.

白垩纪至第三纪，随上覆地层增厚，断层封闭性增强。

5·The latter can be subdivided into 4 stages, including initial rifting, intense rifting, late rifting and Late Tertiary integral downwarping.

新生代裂陷盆地旋回又划分为早期裂陷、强烈裂陷、晚期裂陷和晚第三纪整体坳陷4个阶段。

(1)tertiary industry第三产业

(1)tertiary education高等教育，大学教育

(1)tertiary amine[化]叔胺；三级胺

(1)tertiary recovery三次开采；强化采油

(1)tertiary period[地质]第三纪

(1)tertiary treatment三级处理