查询词典 spiracles

Some sharks such as the nurse shark have spiracles that force water across their gills allowing for stationary rest.

有些鲨鱼如护士鲨有spiracles武力水在其鳃，让固定的休息。

Rather, the spiracles pipe air directly to tissues through a set of tubes called tracheae.

相反，通过一组名叫螺旋纹管的东西，呼吸孔直接输送空气到组织中去。

The spiracles are guarded by bristles which aid in filtering dust and other foreign matter from the air before it enters the tracheae.

气门由刚毛保护，这种叫毛在空气进入气门以前，帮助过滤空气中的灰尘和其他异物。

Along the side of the larva are small openings, spiracles, nine pairs in all, through which respiration occurs.

沿一侧的幼虫是小开口， spiracles ， 9双所有，通过呼吸发生。

The hardy vermin breathe through spiracles, or little holes in each body segment.

繁殖力超强的蟑螂通过呼吸孔来呼吸，或者是通过每一节身体上的小洞。

Insects breath through spiracles in their skin not nostrils.

昆虫呼吸不靠鼻孔，乃靠皮肤中的呼吸孔。

In this study, we used RNA whole mount in situ hybridization to analyze the expression pattern of the dGATA-II gene in the embryonic stage, and found it expresses in the brain、central nervous system、midgut and posterior spiracles at different stages.

由於过去研究，使dGATA-II基因结构已被清楚了解，本论文承续前者，对dGATA-II转录因子在果蝇胚胎时期，促使细胞发育达到特定形态的功能进行探讨。

But Locke(1998), a Canadian entomologist, recently suggested that caterpillars have evolved "lungs" for hemocyte gas exchange. The "lungs " are located at trachea of the 8th pair of abdominal spiracles and tokus compartment at the tip of the abdomen. This is a new concept of insect physiology.

然而，近年来加拿大昆虫学家Locke（1998）提出鳞翅目幼虫中有一个适应血细胞进行气体交换的&肺&结构，它位于昆虫腹部第8节气门与臀腔中的气管处，这是昆虫生理学方面的一个新内容。

Most of insects usually don not have the hemcoyte for transporting oxygen, the respiratory of insect is chiefly accomplished by the tracheal system that spreads all over the whole body. Outside oxygen enters the tracheal system through spiracles arranged in two sides of body and is transported through trachea and tracheoles to meet directly the needs of tissues.

一般认为大多数昆虫体内没有运输氧的血细胞存在，昆虫呼吸主要是靠遍布全身的气管系统来完成，O2靠扩散作用由分布于昆虫身体两侧的气门处进入，经气管、微气管的运输而直接给组织供氧。

The spiracles are bigger and more near dorsal line than all the others. Their trachea branches are taper and abundant and form short tracheoles. This gave the tufted form to the trachea, which appeared shrubby. The trachea branches that arranged in other segments gave them a tree-like look. They do not directly supply oxygen for tissues, but they suspend in the hemolymph and attach to the muscle of the heart, so that they can move in constant with the contraction of the heart muscle.②The 8th segment tracheal tufts have thinner cuticle and basal lamina than that of the other trachea, and have much pad cuticle, which is appropriate for them to move, and their basal lamina have small pores, which are favour of the permeation of gas.③Injecting the methylene blue into the larvae to label hemolymph, we observed that the hemolymph flow into the heart through the 8th segment tracheal tufts.④Normally these tracheal tufts have all kinds of hemocytes, which are abundant in the tufts. A large number of hemocytes released from tissues attach to the tufts by changing their structure when anoxic stress happen.

气管分支细短而丰富，形成气管簇，呈灌木丛状（其它各节气管则呈粗树干状分布），它不是直接给组织供氧，而是悬浮在血液中，与心肌相连接，随着心肌的收缩而不断运动；②气管簇的内膜及底膜都比其它各节的薄，且管壁内膜具有更多的适合运动的垫状表皮，底膜还有小孔结构，这有利于气体的通透；③向体内注射蓝色的亚甲基蓝标记血液发现，血液流动方向是经该气管簇后而流回心脏；④正常情况下，气管簇处有各种各样的血细胞聚集，当缺氧胁迫时有大量的血细胞从组织中释放出来，通过变形而紧贴气管簇，有利于气体的交换；⑤给体内注射无色的亚甲基蓝发现气管簇比其它各节更易变蓝，说明该处具有更高的获氧能力。

With the coming of information age, we depend on network more and more.

随着信息时代的到来，人们对网络的依赖日益加深。

Constitution of the Lacedamonians is important resources for research on the vicissitude of Spatar, which reflects Xenophon's political thought.

色诺芬的《拉栖代梦人的政制》既是研究斯巴达兴衰问题的重要资料，也是色诺芬政治思想的集中体现。