Epithelial cells and muscle is connected to a primitive phenomenon, Hydrozoa in some hard-jellyfish and jellyfish as well as most bowl Anthozoa animals, epithelial cells can be no contraction of the above-mentioned processes.

上皮細(xì)胞與肌肉相連是一種原始現(xiàn)象久久免费A级毛片高清在钱，水螅綱中的有些硬水母以及大多數(shù)缽水母和珊瑚綱動物，上皮細(xì)胞沒有上述能收縮的突起。

The tentacled, usually bell-shaped, free-swimming sexual stage in the life cycle of a coelenterate, such as a jellyfish.

水螅水母有觸手的深夜15级A毛片免费视频，通常呈帶狀的，生命周期中有性階段自由游動的腔腸動物蝌蚪网在线视频，如水母

Among medusae collected in recent years 46 species of Hydromedusae , 2 species of Siphonophore and 2 species of Ctenophora were identified and a new species Ectopleura platypicata Xu et Huang was discovered .

本文根據(jù)作者近幾年來所采集標(biāo)本免费一级啪啪啪视频，在鑒定出遼寧沿海水螅，水母46種A片无卡不码国产在线，管水母2種和櫛水母2種的基礎(chǔ)上在线免费可以观看黄色视频，其中有水螅水母一新種

Any of various marine animals of the phylum Ctenophora, having transparent, gelatinous bodies bearing eight rows of comblike cilia used for swimming.

櫛水母門動物任一種櫛水母門海洋動物，生有透明的欧美精品视频二区免费播放、凝膠狀的身體亚洲亚洲人综合网站图片，并長有八列用于游泳的櫛狀纖毛

Tte also suggest a possible comparison with the Ediacara trilobozoan fossils-Albumares and Anfesta from the shores of the White Sea in Russia. The re-cent discovery of a few skewed E. octobrachiata and walnut-shaped fossils with several carbonaceous meridian bands believed to represent lateral compressions of the same organism strongly suggests that this octoradial fossil is a ctenophoran.

新發(fā)現(xiàn)的傾斜保存的八臂仙母蟲化石和碳質(zhì)條帶呈子午線狀排列的核桃狀化石，可能是該類化石歸屬櫛水母類的有力證據(jù)av.bbixx，這一發(fā)現(xiàn)推測可將櫛水母類的最早化石記錄從"澄江生物群"的早寒武世推前大約3千萬年欧州A片网址。

The report says more than 1,000 fist-sized comb jellies can be found in a cubic yard of Black Sea water during a bloom .

在這次的水母增殖中，黑海水域中每一立方米中就能發(fā)現(xiàn)超過1000拳頭大小的櫛水母男人女人爽到高潮视频真人版。

Any of numerous usually free-swimming marine coelenterates of the class Scyphozoa, characteristically having a gelatinous, tentacled, often bell-shaped medusoid stage as the dominant phase of its life cycle.

水母日本二区三区欧美亚洲国产，海蜇大量的、經(jīng)常自由游動的真水母類腔腸動物欧美福利片500，膠質(zhì)的欧美亚洲福利、帶有觸須的、常為鐘形的類水母體階段是其生命循環(huán)中的主要形式

Zoology The gelatinous, rounded mass that is the major part of the body of most jellyfish.

水母傘膜：大多數(shù)水母的身體的大部分的膠質(zhì)的圓形物質(zhì)

Any of numerous coelenterates of the class Hydrozoa, including the freshwater hydras, hydroids, hydrocorals, and siphonophores.

水螅水母類動物水螅水母類無數(shù)腔腸動物中的任何一個欧洲黄色视频在线观看，包括淡水水螅欧美精品熟妇人妻在线视频，水螅類動物，水珊瑚及管水母類動物

Since the turbine-driven feedwater pump failed to regulate directly the drum level of single boiler and problems like pressure overrun of main feedwater pipe existed, DCS was utilized to solve the problems for its features of shared information, powerful configuration functions and easy modification.

在對國電成都熱電廠嘉陵2×142MW機(jī)組兩爐一機(jī)單元給水系統(tǒng)控制方式進(jìn)行分析的基礎(chǔ)上AAA片免费不卡，針對運(yùn)行中出現(xiàn)的汽動給水泵不能直接調(diào)節(jié)單臺鍋爐汽包水位及給水母管壓力超限等問題中文字幕日本αv一区二区，利用分散控制系統(tǒng)信息共享、組態(tài)功能強(qiáng)大丝袜欧洲另类自拍视频在线观看免费、修改方便的特點(diǎn)在线黄色网站视频，在不增加硬件設(shè)備的情況下，通過軟件組態(tài)增加了汽動給水泵調(diào)節(jié)單臺鍋爐汽包水位調(diào)節(jié)回路和給水母管超壓及欠壓保護(hù)回路欧美一级a大片免费看视频妇产科，實(shí)現(xiàn)了機(jī)組在一爐一機(jī)單元運(yùn)行和兩爐一機(jī)母管運(yùn)行2種運(yùn)行方式下給水自動的合理控制一级黄色网站直接看，并解決了給水母管的壓力保護(hù)問題，提高了機(jī)組運(yùn)行的安全可靠性。