1、

Because the spawning period of the little clam is 7-8 months. which is 4-5 months more than that of the others. Furthermore it spends only 15 months to develop into commodity standard while the others need 24 months.

汕尾港的菲律宾蛤仔有别于我国其他海区的菲律宾蛤仔,其产卵期长达7~8个月(增加了4~5个月),长成商品规格只需15个月。

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2、

Specifically, it violates a key REST constraint and fails to take advantage of one of REST's most important advantages, thereby spawning a new set of problems.

具体来说,它违背了一项关键的REST约束,并且没有利用REST最为重要的一些优点,因此又产生了一组新问题。

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3、

Spawning near the sea bed is biological suicide, says Andrew Brierley, an expert in krill biology from the University of St Andrews, UK.

在海底附近产卵是生物自杀行为,一位叫安德鲁·布瑞雷的专家说,他是圣安德鲁斯,英国大学的一名从事磷虾生物研究的专家。

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5、

The ingestion, metabolism, swimming, spawning, death of anchovy and hatching of eggs are considered. The simulation starts when an anchovy is older than 45 days.

在本文所建鳀鱼种群动态模型中,从45天鳀鱼幼鱼开始模拟,模拟了鳀鱼的摄食、代谢、游泳、产卵、死亡和卵的孵化。

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6、

differential utilization of energy during wintering and spawning migration of anchovy in the yellow

越冬和产卵洄游期黄海鳀鱼对能量的利用差异

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7、

meanwhile, resection of eyestalk can also promote pre- spawning.

同时,切除眼柄,也能促进克氏原螯虾提早产卵。

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8、

perhaps we'll sing hymns rhapsodizing our role as an ornate node in a vast network of new life that is spawning on top of the old.

自旧的生命系统中诞生出新生命的庞大网络,人类则成为其中一个华丽的节点——也许我们还会为此高唱赞美诗哩!

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9、

you're watching the spawning ritual of the dog snapper. the dog snappers parade up the water.

你现在看到的是九带笛鲷的产卵仪式。九带笛鲷在水中游行。

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10、

the moon also triggers the spawning of dog and cubera snappers.

月亮也激发了狗啮鱼和古布拉金线鱼的繁殖。

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11、

the spawning sites are widely distributed and the early development is similar to the cyprinid fishes, but distinct in some aspects.

其早期发育与鲤科鱼类趋势相似,与珠江银鮈相近,但也有明显差别。

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12、

unlike other pacific salmon, rainbow trout and steelhead do not necessarily die after spawning (they may spawn as many as four times).

不像其它的太平洋鲑类,虹鳟和刚头产卵以后并不死掉。

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13、

all pacific salmon, including male steelhead , undergo changes when spawning or migrating to spawn.

所有的太平洋鲑类,包括雄性的刚头,在产卵或者是洄游产卵的途中都要经历形态变化。

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14、

fecundity of misgurnus anguillicaudatus and comparison of several hormones for induced spawning

泥鳅的繁殖力测定及几种激素人工催产比较

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15、

effect of environmental factors on gonadal maturation as well as its ovulation and spawning in teleosts

环境因子对硬骨鱼类性腺发育成熟及其排卵和产卵的调控

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16、

the midwest became an agricultural powerhouse, as well as a processing and shipping region, spawning new cities and rail transportation.

中西部变成了农业重镇,同时也是加工业和船运业发达的地区,新城市和铁路运输也随之涌现。

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17、

each nest spawning 3-5, green white eggs are scattered blue, green and dark spots.

每巢产卵3—5枚,卵呈绿白色至浅绿蓝色,散布有暗斑。

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18、

every year, sockeye salmon return to the rivers of western canada to make their arduous upstream journey to calmer spawning grounds

红大麻哈鱼每年都要返回到加拿大西部的河流中去,逆流而上去寻找一个安静的产卵的环境。

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19、

the port city of memphis was the first major stop along the way, becoming a spawning ground for blues, jazz, and rock-and-roll.

孟菲斯的港口城市成为了这条路线上的第一个主要站点,也成为了蓝调,爵士乐和摇滚乐的温床。

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20、

photo gallery: schools of fish with eyes on their spawning ground, atlantic salmon swim upstream during their spawning run.

鱼群向着他们祖辈的产卵场,大西洋在产卵期溯游而上。

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