无足动物的

But clue to lack of greenplants,photosynthesis did not exist,Cephalopoda needing oxygen had tiolive in the sea.Fortunately the deep sea is pitch-dark,just as thesaying in Journey to the Westthat" Becausethere was no calendar time in the mountain,animals did not know thecoming of the new year".

只是少了绿色植物，光合作用不复存在，需要氧气滋润的头足动物只好避入海洋，好在深海一团漆黑，就如同西游记里说"山中无甲子，寒尽不知年"，那时生物也不在乎时间。

For example, the denotation of human is any person such as John and Mary, and its connotation is "biped","featherless","rational", etc.

例如，人的外延是任何人，如约翰和玛丽；内涵是"两足动物""无羽毛的""有理性的"等等。

Biological Activated Carbon Filter could provide ideal habitats for invertebrates, but invertebrates may lead to aesthetic problems and adverse health effects of drinking water. This paper studied the invertebrates in biological activated carbon filters in a water plant of the south of China during Sep. 2006 to Sep. 2007. The results implied that BAC filters were colonized by invertebrates, in which 23 species of invertebrates were found, the dominating organism group was the rotifer, and others included Copepoda, Cladocera, Oligochaeta, Nauplii and Nematoda.

生物活性炭(Biological activated carbon， BAC)滤池能够为无脊椎动物提供理想的生境，但无脊椎动物可能给饮用水带来负面的健康效果和感观问题。2006年9月～2007年9月，对南方某水厂BAC滤池无脊椎动物滋生状况进行了为期13个月的调查研究，共发现无脊椎动物23种，优势类群为轮虫，其他类群还有桡足类、枝角类、寡毛类、无节幼体、线虫等。

An animal that is blooded and capable of movement on dry land, but is naturally unprovided with feet, belongs to the serpent genus; and animals of this genus are coated with the tessellated horny substance.

有血能够在地上移动，但是天生无足的动物，属于大蛇类；这个物种体表覆盖着有花纹的角质物。

Including Tung perch Section fish, white crayfish, the hole source, points viper, blind beetles, white eyes and flat worms, feet class , Isopoda, beasts in the bag mole Section, Mole Branch, Soricidae, Muridae capsule, small animals such as armadillos.

包括洞鲈科鱼、白色螯虾、洞源、穴蝰、盲甲虫、白色无眼扁形虫、双足类、等足类，兽类中的袋鼹科、鼹科、鼩鼱科、囊鼠科、小犰狳等动物。

Sixteen ( 15 new) amphibian and twenty-two ( 11 new) squamate species have been reported across China, including the oldest Chinese tetrapod Sinostega pani from the Late Devonian of Ningxia Hui Autonomous Region, the large stereospondyl amphibian Yuanansuchus laticeps from the Middle Triassic of Hubei Province, Late Jurassic/Early Cretaceous lissamphibians ( e. G., the anurans Callobatrachus sanyanensis and Mesophryne beipiaoensis, the caudates Jeholotriton paradoxus and Laccotriton subsolanus) from Northeast China, Paleogene lizards (e. G., Brevidensilacerta xichuanensis and Tinosaurus yuanquensis) from North China, and numerous lizards from the Late Cretaceous of Nei Mongol Autonomous Region.

共报道了16种两栖类和22种有鳞类，其中15种两栖类和11种有鳞类为新种，包括我国最古老的四足动物宁夏晚泥盆世的潘氏中国螈，湖北中三叠世的大型全椎两栖类宽头远安鲵，东北晚侏罗世/早白垩世的多种滑体两栖类(如无尾类三燕丽蟾和北票中蟾，有尾类奇异热河螈和东方塘螈)，华北古近纪的蜥蜴类(如淅川短齿蜥和垣曲响蜥)，以及内蒙古晚白垩世的多种蜥蜴类等。

Hill-reservoir has a short retention time; its phytoplankton community was characterized by low abundance and no obviously dominant species. The zooplankton was predominated numerically by rotifer and nauplii.

山地型水库具有较明显的河流特征，浮游植物的种类数和细胞密度均较低，有较多的河流种，无明显优势种；浮游动物的种类和数量很低，以轮虫和桡足类幼体为主。

Caecilians' feet have degenerated, making the smaller species resemble worms, while the larger species with lengths up to 1.5 m resemble snakes.

无足目的动物的脚已经退化，造成其中较小的种类看起来像蠕虫，而比较大的种类（长度可到1.5公尺）则看起来像蛇。

Any of various terrestrial gastropods having an elongated slimy body and no external shell.

各种陆栖的腹足动物，身体粘滑而细长，无外壳。

The ventral part of the shell of a turtle or tortoise.

各种陆栖的腹足动物，身体粘滑而细长，无外壳。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。