sac

• n. [生物] 囊；液囊
• n. (Sac)人名；(西)萨克

来自法语 sac,囊，来自拉丁语 saccus,袋子，口袋，词源同 sack.

1. an enclosed space;

"the trapped miners found a pocket of air"

2. a case or sheath especially a pollen sac or moss capsule

3. a structure resembling a bag in an animal

sac

sac: see sachet

sac (n.)

"biological pocket," 1741, from French sac, from Latin saccus "bag" (see sack (n.1)).

Sac

central Algonquian people who lived near the upper Mississippi before the Black Hawk War of 1832, from French Canadian Saki, probably a shortened borrowing of Ojibwa (Algonquian) /osa:ki:/, literally "person of the outlet" (of the Saginaw River, which itself contains their name, and means literally "in the Sauk country").

If you're looking for a unique adventure, the Space and Aviation Center (SAC) is the place to be.

2018年高考英语北京卷 阅读理解 阅读B 原文

More than 750, 000 have graduated from SAC, with many seeking employment in engineering, aviation, education, medicine and a wide variety of other professions.

2018年高考英语北京卷 阅读理解 阅读B 原文

The lungs consist of millions of tiny air sacs.

肺由数百万个小气囊组成。

柯林斯高阶英语词典

Is the sac and Fox Indian tribe a wild one?

袋与狐部落是野蛮部落 吗 ?

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Meckel's diverticulum is the rudiment of the embryonic yolk sac.

麦克尔憩室是胚胎黄囊的未发育完全器官.

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Conclusion : Lacrimal sac tumors are rare.

接下来两年多的追踪,肿瘤没有再复岭.

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The mature embryo sac contains an egg apparatus, a central cell and three antipodal cells.

成熟胚囊为蓼型胚囊,它包括卵器, 一个中央细胞和三个反足细胞.

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But embryo is developed from only one embryo sac.

但一般只有一个胚囊可发育出成胚.

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Black Lambskin Leather small hand bag pouch sac New!

黑色羊皮皮革小手包零钱包国资委全新!

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The heart sounds are muffled when the pericardial sac is distended with fluid.

当心包充满液体时心音减弱.

辞典例句

Starch grains present in the embryo sac and placenta are utilized by the embryo.

存在于胚囊和胎座中的淀粉粒为胚胎所利用.

辞典例句

OMNEX is the only company authorized to deliver training for the Semiconductor Assembly Council ( SAC ).

OMNEX是唯一的公司授权了交付为半导体训练汇编委员会 ( 囊 ).

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Objective To evaluate the value of yolk sac size and morphology in early pregnancy and prognosis.

目的探讨卵黄囊对早孕的诊断及其预后的价值.

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Objective To observe the clinic effect of hydroxyapatite ( HA ) implantation combined with conjunctival sac plasty.

目的观察羟基 磷灰石 义眼座植入同时结膜囊成形的效果.

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ObjectiveTo evaluate the clinical value of lacrimal duct stent for treatment of lacrimal sac mucocele.

目的评价鼻泪管支架植入术在治疗泪囊黏液囊肿中的应用价值.

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An abnormal membranous sac containing a gaseous, liquid, or semisolid substance.

囊肿一种含有气态 、 液态或者''.'半'.''固态物质的异常膜''.'性'. ''囊.

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Objective To study the diagnosis and recognition of yolk sac tumor of testis.

目的提高睾丸内胚窦瘤的诊治水平.

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Several live worms were found in his conjunctiva sac.

后来在门诊中发现结膜囊里有数只活寄生虫.

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Gallbladder: Muscular membranous sac under the liver that stores and concentrates Bile.

胆囊: 见于许多脊椎动物的肌性膜性囊,用以贮存及浓缩胆汁.

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With embryo sac haustorium in chalazal end, the embryo sac is Endymion type.

胚囊发育类型为英地百合型,合点端形成胚囊吸器.

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Wall ingrowths occurred in central cell at micropylar region near embryo sac wall.

中央细胞在珠孔端与胚囊壁相邻的部位形成壁内突.

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Proceeding anastomose for 16 loser of lacrimal sac and nasal cavity anastomose surgery again.

方法:对16例鼻腔泪囊吻合失败者再行吻合.

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Pollen tube entered the embryo sac via one synergid and in it released two sperms.

花粉管经由一个助细胞进入胚囊,并在助细胞中释放两个精子.

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Objective To study the clinic results of treatment of serious conjunctival sac narrow by amnion transplantation.

目的从临床角度探讨羊膜移植在严重结膜囊狭窄整形中的应用.

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Objective To investigat the clinical valvue of dilater curing contract of conjunctival sac.

摘要目的探讨结膜囊扩张器在治疗结膜囊狭窄与萎缩的价值.

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