SAC 标准化技术委员会 ; 分技术委员会 ; 国家标准化管理委员会 ; 工作组
cul-de-sac 死路 ; [公路] 尽头路 ; 荒岛惊魂
amniotic sac [胚] 羊膜囊
air sac [动] 气囊 ; 肺泡 ; 肺胞囊 ; 气囊气孔
yolk sac [胚] 卵黄囊 ; 先后经历了由卵黄囊 ; 探讨卵黄囊 ; 目的探讨卵黄囊
embryo sac [植] 胚囊
dental sac [胚] 牙囊 ; [胚] 齿囊
pollen sac [植] 花粉囊
conjunctival sac [解剖] 结膜囊 ; 结膜嚢
yolk sac tumor 卵黄囊瘤 ; 卵巢内胚层窦瘤 ; 又称卵黄囊瘤 ; 肿疡
·2,447,543篇论文数据,部分数据来源于NoteExpress
N-COUNT A sac is a small part of an animal's body, shaped like a little bag. It contains air, liquid, or some other substance. 囊
The lungs consist of millions of tiny air sacs.
肺包含数百万个小肺泡。
Some of the models contained an air sac.
其中一些模型含有气囊。
They must also keep swimming to keep from sinking, since most have largely or completely lost the swim bladder, the gas-filled sac that helps most other fish remain buoyant.
它们还必须不停地游动以避免下沉,因为大多数鱼基本上或完全失去了鱼鳔,这个充满气体的囊帮助大多数其他鱼保持浮力。
Chris has talked about pandas being an evolutionary cul-de-sac, and it's certainly unusual for a carnivore to take up herbivory.
克里斯曾经说熊猫是进化的尽头,而对于食肉动物来说,摄取食草动物是很不寻常的。
Let's just say that you have a child who lives up here, say in this cul-de-sac, and is friends with a child who lives over here.
假设有你有一个孩子住在这儿,在这条死胡同里,他有个朋友住在这
And then, I'm going to skip down a little bit: Though she never again called back any image of the dead man to dress up, pose, talk to and make answer, neither would she lose a new compassion for the cul-de-sac he'd tried to find a way out of, for the enigma his efforts had created.
接下来,我会跳过一些内容往下说:,虽然她从没有想起过,那个死人穿衣、摆弄姿势、,说话和回答问题时的样子,她也不会失去对他的同情,对他尝试摆脱,无路可走的困境所付出的,谜团一般的努力。
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