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- Selection of pioneer species is one of the key factors for the restoration of ecosystem in desertification areas. 摘要先锋树种选择是沙漠化地区生态恢复工作的关键技术之一。
- Seed movement across the soil surface of these bare alkali-saline patches was abundant and dominated by the seeds of pioneer species, such as Chloris virgata and Suaeda corniculata, which accounted for over 96% of these trapped seeds. 土壤表面种子流数量巨大,且以一年生耐盐硷的先锋植物(虎尾草和硷蓬)种子为主,占总流量的96%25。
- Caragana jubata (pall.), belonging to Leguminosae, Caragana Fabr, has high nutritional, pharmaceutical and ornamental value.It is a pioneer species of tolerance to drought and barren stress. 摘要鬼箭锦鸡儿豆科锦鸡儿属植物,具有很高的营养、药用和观赏价值,也是抗干旱耐瘠薄的造林先锋树种,在六盘山有天然分布,但尚未开发利用。
- He was a pioneer in the use of X-rays. 他是最早使用X光的人。
- Do wolves belong to the canine species? 狼是犬科动物吗?
- An innovative leader in a field; a pioneer. 创始人某一领域内的革新领袖; 先驱
- 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。
- She was descended from a pioneer family. 她来自一个早期的开拓者家庭
- 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。
- "These extremely hardy, slow growers often are pioneer species in sparse environments such as mountaintops and the far North." 它们非常耐寒,成长缓慢,常常是最先进驻人烟罕至地方的植物,如山巅和极北地区。
- The Young Pioneer saw the blind man across the road. 这个少先队员扶着盲人过了马路。
- There are many species of chrysanthemum. 菊花品种很多。
- 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。
- Unlike most other bats, this species is diurnal. 这种蝙蝠与大多数蝙蝠不同,是在日间活动的。
- Mr. Bowen is a pioneer in the US trade with China. 伯恩先生是一位美中贸易的开拓者。
- He was the pioneer of photography. 他是摄影术的倡导者。
- This species of flower flourishes in a warm climate. 这种花在温暖的气候中长得茂盛。
- An endangered species; an endangered culture. 濒临绝种的生物种类; 濒临绝传的文化