查询词典 sperm sac

An examination of old bones has led scientists to suggest that sperm whales diving deep beneath the surface of the ocean can suffer from decompression sickness or the bends just as human divers do.

一项关于对古老骨头的研究引发了科学家提出了抹香鲸当潜入海面以下时会和人类潜水员一样遭受减压病，或者称气栓症的设想。

Sperm adhere Billiton to be market-oriented to a first-class technology, first-class service, creating value for customers.

精拓坚持以市场为导向，以一流的技术，一流的服务，为客户创造价值。

A newborn sperm whale beached itself Saturday and was euthanized by a veterinarian after a five-hour fight to save its life.The black whale, approximately 10 feet long and 500 pounds, was found early Saturday about one-half mile north of the Boca Raton Inlet in Palm Beach County.

一只刚出生不久的小抹香鲸7月30日在美国佛罗里达州棕榈滩县的一处海滩搁浅，在经过了长达5个小时的救援之后，兽医最终对它实施了安乐死。

However Feng et al (1997) and Wakayama et al (1997, 1998) have first reported that followed by injection of PbI into the enucleated oocyte, which was injected into the head of sperm, and the recombinant oocyte could produce a mouse offspring with generational function.

然而，Feng等（1997），Wakayama 等（1997、1998）的研究结果证实：将PbI注入去核卵母细胞后再注入精子头部可以产生具有生殖功能的小鼠后代。

In Romania, where payments are legal, a clinic in the western city of Timisoara is offering donors the equivalent of ￡35 a donation, while around 100 car workers at a factory in Campulung have pledged to sell sperm to a fertility clinic to try to reduce their company's debt.

精子在罗马尼亚，付费捐助是合法的，西部城市蒂米什瓦拉的一间诊所为每位捐助者支付相当于35英镑的报酬，而坎普龙某家工厂约100名汽车工人则许诺出售精子给一家生育诊所，以此来减轻公司债务。

There was a certain difference in sperm motility analysis between CASA and SRA.

结论无论SRA还是CASA对精子密度的分析是可信的，而对精子活力分析时则有差异。

German Research Association, said a press release issued a few days ago, the association funded the University of Nuremberg, Germany Erlanger special studies have shown that men the world over the past few decades to reduce the number of sperm may be related to light in a wide range of chemicals used as softeners o of the acid esters.

德国研究协会日前发布的新闻公报说，该协会资助德国厄兰格·纽伦堡大学进行的专项研究表明，过去几十年全球男性精子数量的减少可能与轻工业中广泛用作软化剂的化学品邻苯二甲酸酯有关。

Gamete contains a basic set of 23 chrom osom es—a haploid set ;on fusion of eg gand sperm a fullset of 46 chrom osom es results.

。 个卵子与精子融合时，便制成组含有完整十六个染色体的组合。

Rollo, of the University of Camerino, in Marche, Italy, and his team carried out tests on mitochondrial DNA on tissue samples taken from the mummy in 2000 and found two typical mutations that are common among men with reduced sperm mobility, the statement said.

据美联社2月4日报道，声明说，此项研究的负责人、意大利卡美日诺大学的人类学家同时也是DNA分析专家的佛朗哥·罗洛确定，尽管该男子的特殊DNA属于一个首次被鉴别出来的亚组，但他的基因结构属于欧洲8种基础基因构成中的一种。

Hamm and Leeuwenhoek were the first scientists to observe human sperm cells using an improved microscope in 1677 (more than 1000 years after Muhammad ).

公元1677年，两位科学家翰姆和列恩福克首先使用改进后的显微镜观察人类的精子细胞(在穆罕默德年代的1000多年之后)。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48