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- The pressure on dams and levees are very strong. 大坝与河堤的压力非常大。
- Report of the committee on observation on dams and. 关于大坝和模型观测的报告。
- The pressure on dams and levee s is very strong. 大坝和堤防需要承受巨大的洪水冲击的压力。
- The pressure on dams and levies is very strong. 大坝和征税工作十分严峻。
- On dams and ecology 论大坝与生态
- "Dams and ecology"is an important problem in the contacting between human being and nature, the effects of dams on ecology environment was paid more attention recently. “水坝与生态”是人与自然和谐相处中的一个重要课题,水坝对生态环境的影响近些年来受到人们高度关注。
- The pressure on dams and levies (levees) is very strong.Aid official afraid the extra flooding will come (occur) as dams will break. 防洪坝堤压力巨大,救援组织担心而后来袭的洪水将致使坝堤崩塌。
- Experts say the world must -- at the very least -- double its spending on dams and pipes before climate change worsens the problems of drought, flooding and disease. 专家们称,在气候变化使旱灾、洪灾和疾病问题恶化之前,全球必须在大坝和管道上增加一倍的支出。
- Studies on the breeding biology and ecology of Ardeola bacchus. 池鹭繁殖生物学与生态学研究
- Habitat and ecology: On hillslopes. Sprouting: spring. 生境与生态:生于山坡。春季出笋。
- Weather forecasters predict more heavy rainfall in the next two months. The pressure on dams and leveesis very strong. Aid officials are afraid extra flooding will occur as dams break. 尽管洪水正在退去,但天气预报称在未来的一两个月内还将有暴雨。这对水坝和防洪堤将构成极大的压力。救援组织担心而后来袭的洪水将致使水坝面临崩塌。
- Habitat and ecology: On shallow beaches. Flowering: Nov.-Dec. 生境与生态:生于浅海滩上。花期:11-12月。
- Weather forecasters predict more heavy rainfall in the next two months. The pressure on dams and leviesis very strong. Aid officials are afraid extra flooding will occur as dams break. 尽管洪水正在退去,气象预报预计在接下来两个月仍将有大雨降下。对大坝以及征税工作的压力巨大。援助官员担心大坝决堤造成又一次洪水泛滥。
- Methods:Observation on the population and ecology of Anopheles. 方法:对按蚊种群生态观察。
- Experts say the world must -- at the very least -- double its spending on dams and pipes before climate change worsens the problems of drought, flooding and disease. Juliette Jowit reports. 专家们称,在气候变化使旱灾、洪灾和疾病问题恶化之前,全球必须在大坝和管道上增加一倍的支出。
- Habitat and ecology: In thickets and forests. 生境与生态:生于灌丛和林中。
- Habitat and ecology: On sandy beaches. Flowering: January; fruiting: Apr. 生境与生态:生于沿海沙滩地。花期1月;果期4月。
- Habitat and ecology: In forests. Flowering: Apr. 生境与生态:生于山地林中。花期:4月。
- Habitat and Ecology: In ravines. Flowering: Autumn. 生态与生境:生于山谷溪边和林下。花期:秋季。
- Habitat and ecology: In forests. 生境与生态:生于林下。