porpoises的例句大全

In 1928 some porpoises were photographed working like beavers to push ashore a waterlogged mattress. 1928

年有人把这些海豚象海狸那样把一床浸泡了水的褥垫推上岸时的情景拍摄了下来

The porpoises have not gone away long since.

从那以后很久了，这些鼠海豚都没有离开过。

A yellow fatty oil obtained from porpoises and used as a fine lubricant.

一种从鼠海豚中提取的黄色脂油，用作优质润滑剂。

On that day, four porpoises were found dead, one of which was even pregnant with a baby.

当天有4条江豚死去，还有一头江豚肚子里正怀着胎儿。

The research progress of the finless porpoises and bat. 3.

江豚及蝙蝠的研究进展。

More than 300 thousand small whales, dolphins and porpoises die due to commercial fishing each year.

每年都有30多万头小鲸鱼、小海豚还有鼠海豚因为商业捕捞而丧生。

In the18th century, porpoises were described as so common they sometimes darkened the sea as they rose to draw breath.

在18世纪，鼠海豚被描述为非常普遍的，他们有时使海水变黑，因为它们生长是靠喘气。

After the release of Louie Psihoyos's Oscar winner, "The Cove" ( 2009), about the slaughter of dolphins in Japan, the number of dolphins and porpoises killed there fell by 17000 a year.

路易·西霍尤斯（Louie Psihoyos）的奥斯卡获奖影片《海豚湾》（The Cove，2009）是关于日本捕杀海豚问题的，该片上映后，海豚与鼠海豚的捕杀量在一年内降低了1.7万头。

Killer whales will eat seals, porpoises, sea lions and even small whales and sharks.

但它们会捕食海豹、海豚、海狮甚至幼鲸和鲨鱼等。

Electrophoretic studies of LDH, MDH and POD isozymes in the tissues of finless porpoises

江豚几种组织的LDH、MDH和POD同工酶的电泳观察

There are different characteristics in body shapes and population structures of the finless porpoises collected from the River and from the northeast China coastal waters.

长江的江豚和中国沿海的江豚在形态和种群结构上各具特点。

By this March, scientists estimated there were only 85 finless porpoises left in the lake, 145 less than six years ago.

到了今年3月，水生所的专家测算到的江豚只有85头。近6年内，洞庭湖已累计减少了145头江豚。

After about two years'observation and monitoring, our results indicated that the oxbow is ideal as a semi-natural habitat for the fin-less porpoises.

本底调查和试养江豚的结果表明，长江天鹅洲故道是建立白豚半自然保护区的理想场所。

Scientists at the Zoological Society of London say harbour porpoises exposed to PCBs had smaller testicles, suggesting an effect on sperm3 count and fertility.

英国伦敦动物学会的科学家们表示，暴露在含有多氯联苯的环境下的港湾鼠海豚睾丸较小，这表明多氯联苯对其精子数和生殖能力有所影响。

Any of various small whales, porpoises, or similar aquatic mammals, especially a whale of the genus mesoplodon, having a pointed snout.

啄鲸一种小型鲸、海豚或类似的水生哺乳动物，尤指啄鲸属的一种有尖啄的鲸鱼。

Large aquatic carnivorous mammal with fin-like forelimbs no hind limbs, including: whales; dolphins; porpoises; narwhals.

大型水生食肉哺乳动物，前肢象鳍、无后肢，包括：；鲸；海豚；鼠海豚；独角鲸。

This is not easy, and may require two porpoises working together.

这并不容易，而且可能需要两只海豚合作。

do you know that every year, in the north sea, over 7000 dolphins and porpoises are caught and die in fishing nets?

你知道吗，每年，在北海，有超过7000头海豚和鼠海豚被缠绕并死在渔网中吗？

all dolphins, porpoises, and whales belong to the order cetacea.

所有海豚，海豚和鲸属于海豚秩序。

In 1928 some porpoises were photographer working like beavers to push ashore a waterlogged mattress.

1928年,有人拍摄到了海豚像海狸一样把浸透水的床垫推上岸的情景.