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Their resulting decline in genetic variation can be deduced by comparing it to that of the southern elephant seal which were not so aggressively hunted.

将北象海豹与没有受到如此猛烈追捕的南海象豹作一个比较，可以推断出北象海豹因此而减少的遗传变异。

Look Again, Baby Seal One of the most touching nature photographs is of a baby fur seal lying on th e ice alone.

再看一眼，再看一眼，小海豹最感人的自然摄影照片之一，是一只毛绒绒的小海豹独自卧在冰上。

To set the Date or Time with Screw Crowns:Setting the time and date with a screw down crown watch is the same as above;however to pull out the crown you must first"unscrew"the crown by turning it in a counter clockwise direction until the crwn releases from the threaded tube.

鲁美诺思Luminox 海豹系列产品中英文使用说明书（适用于6102，3105等海豹三针系列产品）☆☆注意：请先仔细看本说明书。本款手表和普通手表不同，调时间旋钮不是直接往外拔的，有防水螺纹管，所以要首先逆时针拧动旋钮，直到旋钮从螺纹管旋出。

As the sealskin market prices, some to kill seals facing Canadians living "off" crisis.

由于海豹皮市场价格下跌，一些以捕杀海豹为生的加拿大人开始面临"下岗"危机。

Studies of the Weddell seal in the laboratory have described the physiological mechanisms that allow the seals to cope with the extreme oxygen deprivation that occurs during its longest dives, which can extend 500 meters below the ocean's surface and last for over 70 minutes.

三个定语从句关于威德尔海豹特殊的生理机制，在实验室里对其进行的研究已作过详细的描述。该生理机制使海豹可以适应长时间潜水时出现的极度缺氧。海豹长时间潜水时最深可达水面以下500米，时间可持续70多分钟。6。

Studies of the Weddell seal in the laboratory have described the physiological mechanis ms that allow the seals to cope with the extreme oxygen deprivation that occurs during i ts longest dives, which can extend 500 meters below the ocean's surface and last for ove r 70 minutes.

三个定语从句关于威德尔海豹特殊的生理机制，在实验室里对其进行的研究已作过详细的描述。该生理机制使海豹可以适应长时间潜水时出现的极度缺氧。海豹长时间潜水时最深可达水面以下 500 米，时间可持续 70 多分钟。

Studies of the Weddell seal in the laboratory have described the physiological mechanisms that allow the seals to cope with the extreme oxygen deprivation that occurs during its longest dives, which can extend 500 meters below the ocean's surface and last for over 70 minutes.

实验研究已经揭示了威得尔海域内海豹在它们长时间潜入水中时，长时间缺氧下的生存生理学机制。这种海豹能够下潜水下500米，持续时间长达70分钟。

All brackets and fixings shall be hot-dip galvanized. 1.23 Penstock General Requirements Penstocks shall be of the following types: i Cast iron with scraped non-ferrous sealing ii Cast iron with rubber sealing faces iii Stainless Steel iv Composite plastic

所有托架和定象将是热浸洗镀锌。1.23 笔杆一般规定笔杆将是以下型： i 生铁与被刮的非铁质海豹捕猎ii 生铁以橡胶海豹捕猎面对iii 不锈钢iv 综合塑料

Hooded seal mothers feed their babies milk for just one week!

冠海豹妈妈只在小海豹出生的头一个礼拜给它们喂奶！

The results from this study showed that the spotted seals of Liaodong Guif is a independent population and no genetic exchanges with those along Sea of Japan and Sea of Okhotsk.

研究结果初步表明，辽东湾斑海豹是一个独立的种群，且没有与日本海及鄂霍茨克海斑海豹发生种群间遗传交流。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。