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melody_tung金虫 (正式写手)
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帮忙翻译两段文献,环境生态方向。
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Field collection of cores. Ten sampling trips were conducted in 1990.During each trip, sites were sampled randomly within a 5 m radius of a site marker. All sediment samples were collected by divers using SCUB. During the winter period access holes were cut through the ice with a chain saw. Three types of cores were used. The first type, the 'flux' core, was collected by gently pushing the open-ended PVC tube into the sediment, to preserve the sediment horizons. The sediment collected was approximately 10 cm thick. When in place, a tight-fitting stopper was installed on the bottom, by sliding it down and under the core. A second valved stopper was installed on the top end of the core with the valve open. After placement of the bottom stopper, the valve on the top stopper was closed and the core was withdrawn from the surrounding sediments. Cores were kept in the dark, at collection temperature and returned to the field lab within 30 min for incubation. Because the incubation chamber could only accommodate 5 cores, 4 replicate sediment cores and 1 water-only core from each site were analysed on each day of the 2 d trip. The second type of core, the 'surface skimmer'core, was used to measure the composition of recently-deposited sediment. These cores were passed along the surface sediment by the diver, and stopper were installed at both ends. During each day of each sampling trip, 4 replicate 'flux' cores and 3 replicate 'surface skimmer' cores were deployed at each site. [ Last edited by melody_tung on 2009-3-18 at 15:03 ] |
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wfcicsd(金币-5,VIP+0):友情提示:请勿照搬翻译软件(譬如XX快译等的自动译作)进行不负责任的应助,否则按捣乱论处,给予相应处罚! 3-31 22:05
wfcicsd(金币-5,VIP+0):友情提示:请勿照搬翻译软件(譬如XX快译等的自动译作)进行不负责任的应助,否则按捣乱论处,给予相应处罚! 3-31 22:05
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实地收集的核心。 10个取样进行的旅行1990.During每次,网站内随机取样5米半径的网站标志。所有的沉积物样本收集的潜水员使用SCUB 。在冬季期间访问洞被切断通过冰的链锯。三种类型的内核使用了。第一种类型的'流'的核心,是所收集的轻轻推动不限成员名额的PVC管的沉积物,保持沉积物视野。沉积物收集到约10厘米厚。当在一个紧身塞子被安装在底部,滑动下来,并在核心。第二瓣塞子上安装的高端核心的阀门打开。安置后的底部塞子,阀门顶部塞子被关闭,被撤销的核心从周围沉积物。核心是保持在黑暗中,在温度和收集返回实验室领域的30分钟内孵化。由于孵化厅只能容纳5内核, 4复制沉积物和1个水只有核心从每个网站上分析了每一天的2个D行程。 第二种类型的内核,表面skimmer'core ,是用来衡量组成最近沉积。这些内核是通过沿线的表层沉积物的潜水员,并塞子安装在两端。在每一天的每个取样访问, 4复制'流'内核和3复制表面笊'核心部署在每个网站。 |
2楼2009-03-20 18:38:59
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3楼2009-03-20 23:45:07
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4楼2009-03-31 21:57:07
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5楼2009-04-01 09:22:05
看年无的翻译。
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melody_tung(金币+12,VIP+0):非常好!!非常感谢!! 4-8 08:51
melody_tung(金币+12,VIP+0):非常好!!非常感谢!! 4-8 08:51
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野外采集柱形样。在1990年进行了10次野外采样。每次采样时,划定位置标记,之后在标记5 m半径范围内随机采样。所有沉积物样品均由潜水员用SCUB采集。冬季时用链锯将冰锯开,形成采样洞。采用三种类型的柱形样。第一类,“通量”型,将PVC管的开口端轻轻压入沉积物中,以保护沉积物的层次。采集的沉积物的厚度在10 cm左右。到达位置后,可以可以紧塞的塞子塞住底端,方法是先将塞子朝下滑,之后到达管底。再用一个阀形塞塞住顶端,并保持阀为打开状态。塞上底端的塞子后,关上顶端塞子上的阀门,之后将样品柱从周围沉积物中拉出。样品在采样温度下保存在暗中,30 min内运回实验室培养。由于培养箱仅能容纳5个样品柱,因此,每次采样用2天时间,每天每个采样点采用4个重复沉积物柱、1个仅装入水的柱进行分析。 第二类样品柱,“表面浅采型柱”,用于测定新近沉积的沉积物的组成。这些样品柱由潜水员沿沉积物表面方向采集,两端均塞住。每天的每次采样,在每个点采集4个“通量”柱的重复,3个“表面浅采”柱的重复。 |
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7楼2009-04-08 18:14:51
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8楼2009-04-09 08:42:23












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