dentition ；

[例句] 全面检查齿系能够获得有用的内科的资料. A general examination of the clentition can yield useful medical information.

[例句] 齿系完整, 牙齿相当大, 剪状咬和. A full complement of teeth, comparatively large, meet a scissors bite.

by the numbers ；

[例句] 士兵们都系统地接受过保护武器的训练. The soldiers have been thoroughly instructed in the care of their weapons.

[例句] 雨林正被系统地毀灭. The rainforest is being systematically destroyed.

factions，clique，circle，ingroup，split ；

[体]clinch ；

[例句] 绳子没系牢. The rope hasn't been tied fast.

[例句] 晾衣绳被拉紧并系牢。 The clothes line is pulled taut and secured.

relate to，affiliated with，tie in ；

[例句] 人员的裁减和服务质量的下降之间显然是有联系的。 There is an unquestionable link between job losses and deteriorating services.

[例句] 有可靠证据表明日光曝晒与皮肤癌之间有联系。 There is convincing evidence of a link between exposure to sun and skin cancer.

[地质] （第三纪形成的地层） Tertiary system ；

[例句] 下第三系渐新统临河组 ( E_3l ),始新统乌拉特组 ( E_2wl ). Paleogene Oligocene Linhe formation ( E _ 3 J ) and Eocene Wulate formation ( E _ 2 wl ).

[例句] 下第三系含水层不能作为供水的主要目的层,但能提供高温热水,可作为供热热源. But Eogene aquifer cannot be taken as the main objective formation.

metagalaxy，hypergalaxy ；

[例句] 学天文的应该对总星系有个大体的认识. People majoring in astronomy should have a general view of the metagalaxy.

hitch，moor，tie down ；

[例句] 他系住马,走进了小酒店. He tied up the horse and went into the inn.

[例句] 他拔下桅杆,把帆卷起,系住. He unstepped the mast and furled the sail and tied it.

anchor ；

[例句] 它们是用拉绳系紧的。 They fasten with a drawstring.

[例句] 你不把它系紧它会松的. It will loose if you don't bind it fast.

[医] systematic ；

[例句] 他的鞋子是用几段旧带子系的. His shoes were tied on with old bits of string.

[例句] 我们系的学生总共有几百人. The students of our department numbered in the hundreds.

copula ；

[例句] 形容词常做连系动词的表语,用以描述主语. Link verbs often have adjectives as complements describing the subject.

[例句] 表示对现在或将来的情况的推测, 此时动词通常为系动词. I don't know where she is, she may be in Wuhan.

department head ；

[例句] 她随后成了系主任。 She subsequently became the Faculty's President.

[例句] 外语系主任是谁? Who is the dean of the Foreign Languages Department?

genealogical ；

[例句] 这些系谱的掺入是更为离奇和无理的. The insertion of these genealogies is the more peculiar and unreasonable.

[例句] 依照我们的学说, 体型的一致是由于祖先系谱的一致. On our theory, unity of type is explained by unity of descent.

to fasten，Attach，to buckle up；

[例句] 系上与其他装饰相配的布质蝴蝶结。 Tie it with fabric bows that co-ordinate with other furnishings.

[例句] 他穿上厚厚的软皮鞋，系上鞋带。 He pulled on his heavy suede shoes and tied the laces.

scientific，systemic，[计] systemative，[医] systematic ；

[例句] 有人调大了公共广播系统的音量。 Someone cranked up the volume of the public address system.

[例句] 很难为国民医疗保健系统的实验室招募到资历合适的高级科研人员。 There are problems in recruiting suitably qualified scientific officers for NHS laboratories.

systematization，[计] systemize，systematize，systematism ；

[例句] 阿波罗尼做了去粗取精和使之系统化的工作. Apollonius stripped the knowledge of all irrelevancies and fashioned It'systematically.

[例句] 应用矩阵可以使计算程序系统化,并可使问题适于用计算机求解. The use of matrices systematizes the calculation procedure and adapts the problem to a computer solution.

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[例句] 在暴风雨中,我们不得不把货物紧系在船的甲板上. We had to lash the cargo to the ship's deck during the storm.

[例句] 他把这根铁丝紧系在金属圈上. He made the wire fast to the metal ring.

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[例句] 如果你们的婚姻或关系出现裂痕，就向婚姻指导顾问求助。 If your marriage or relationship is in disrepair, enlist the help of a marriage guidance counsellor.

[例句] 这对完善普通逻辑或关系理论有重要意义. This has important significance to perfecting general logic and relations theory.

fillet，laqueus, lemniscus，lemnisci，lemniscus ；

dyas ；

[例句] 隧道主要通过三迭系、二迭系 紫红色 软质砂岩、泥岩岩层. It passes mainly through the purple -- color soft sandrock and mudstone in Triassic or Dyas Systems.

[例句] 准噶尔盆地西北缘五八区二迭系佳木河组是含火山岩系地层,即火山岩和碎屑岩混积地层. Jiamuhe formation along the northwestern margin of the Junggar basin is volcanic rock bearing stratum.