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- That matters because theory suggests that the maximum sustainable yield that can be cropped from fishery comes when the biomass of a target species is about 50% of its original levels. 这点之所以很重要是因为理论指出，一个渔场若能够获得最高持续产量，只有当目标物种的生物量是原来水平的50%25时才能实现。
- That matters because theory suggests that the maximum sustainable yield that can be cropped from a fishery comes when the biomass of a target species is about 50% of its original levels. 因为理论,所以那有关系当目标种的生物量是有关50%25的它最初的水平事时候,可能从一个渔场被收割的最大足可支撑的生产量来。
- The western and-central Pacific Ocean(hereafter WCPO)is one of the main fishing grounds of tuna purse seine fishery in the World with the main target species skipjack,yeUowfin and bigeye tuna. 中西太平洋是世界金枪鱼围网渔业的主要渔场之一,主要渔获鱼种为鲣鱼、黄鳍金枪鱼与大目金枪鱼。
- Regulation of wild animals and plants in such a way as to provide for their continuance. Efforts are aimed at preventing the depletion of present populations and ensuring the continued existence of the habitats targeted species need to survive. 管理野生动、植物使之成为一种自然资源而继续存在下去。这种努力的目的是在于不使目前的物种数量减少,也确保濒危品种得以生存下来。
- The torpedo homed in on its target. 鱼雷射向目标。
- Do wolves belong to the canine species? 狼是犬科动物吗？
- We should do our best to save endangered species. 我们应该竭尽全力挽救濒于灭绝的生物。
- The company has met their export target. 该公司已经实现了它们的出口目标。
- A stationary target is easiest to aim at. 静止的目标是最容易瞄准的。
- He shot an arrow, but it fell short of the target. 他射了一箭，但没有射中靶。
- This rare bird has become an endangered species. 这种珍禽已成为濒临灭绝的物种。
- He was wearing a strange species of hat. 他戴着一种奇怪的帽子。
- He won't hit the target at that distance. 他打不中那样远的目标的。
- Shots were fired at the enemy target. 有人向敌军目标开枪。
- You missed the target by a mile/by miles. 你远未中的。
- There are many species of chrysanthemum. 菊花品种很多。
- He fired several shots (at the target). 他向目标射出了几发子弹。
- Today the survival of our species is threatened. 今天人类的生存受到了威胁。
- The giant panda has become an endangered species. 大熊猫已成了一种濒临灭绝的动物。
- I aimed at the target but hit the wall. 我瞄准了靶射击,但却打在了墙上。
