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- Use recyclale paper is also a way to protect forest resources. 使用再生纸也是保护森林资源的一个途径.
- We find that the existing smoke protection settings can not control the smoke diffusing effetely at the same time. 同时发现地铁车站原防排烟系统设置无法对火灾时的烟气进行有效的控制。
- We must put in practice a strict land management system and measures to protect forest and grasslands. 坚决实行最严格的土地管理制度和保护森林资源的措施。
- Establishment of Cutting Orchard of Improved Variety for Coastal Protection Forest of Casuarina spp. 沿海防护林木麻黄优良品种采穗圃营建技术的研究。
- Study on Affection of Water Resources Protection Forest to Water Quality of Miyun Reservoir in Beijing, China. 北京密云水库水源涵养林对水质的影响研究。
- Protection Forest on sandy meadow was established by mixing broadleaf trees to raise stability of sandy meadow system. 为提高草沙地系统稳定性,采用阔叶树混交方式营建草沙地防护林。
- Chemical property of precipitation in Pinus tabuleaeformis water resource protection forest in Miyun Reservoir wa-tershed. 密云水库集水区人工油松水源保护林降水化学性质研揪。
- Construction of ecological environment forest, urban protection forest, water and soil conservation, production and comprehensive utility and development of nursery stock. 生态环境林、城市防护林建设,天然林资源保护,水土保持,林业苗木生产及综合利用开发等。
- Discusses regional construction pattern of optimal protection forest system to esta-bilish a symbiosis relation between protection forest system and ecosystems. 生态经济型防护林体系建设模式系统就是体系的建立和优化发展的方法系统。
- smoke protection system mechanical pressurization 防烟系统
- A state environmental official, James L. Caswell, said that such logging would in general be intended to protect forest health and manage fire risks. 一个叫做JamesL.;Caswell的州环境官员说这种开采基本上会是出于森林保护和防火的目的。
- The results show that Populus simonii x nigra and Pinus sylvestris vat. mongolica protection forest can increase the soil waterstorage capacity in shelterbelt networks. 防护林可增加林网内土壤贮水量;
- It was once thought unmanly not to drink and smoke. 身为男子不抽烟不喝酒曾视为无男子气概。
- The castle was hidden behind a curtain of smoke. 城堡被一层烟雾遮掩着。
- These lures are surrounded by nets and placed in open fields next to a protected forest in southern Brazil. 这些诱饵的四周张网围布,放置在南巴西的一个受保护森林旁的开阔地上。
- The tail exhaust pipe of the motor vehicle emitted poisonous smoke. 机动车的尾部排气管排出有毒的浓烟。
- A good cigarette will smoke at least ten minutes. 一支好烟至少可以抽10分钟。
- The main duties and responsibilities of a forest protection person are to patrol and protect forests and stop activities that damage forest resources. 护林员的主要职责是: 巡护森林,制止破坏森林资源的行为。
- He used to smoke a pack of cigarette a day. 他过去经常一天抽一包香烟。
- Smoke was rolling up from the burning oil up smoke. 正在燃烧的汽油箱上浓烟滚滚。