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By field investigation, field trial and pot trial, we studied the sources of the lead coming from and the absorption and the accumulation of the lead on the tea plant , found the lead's activity in tea is lower, most of the lead absorbed are fixed in feeding roots, only a little are transported to above ground parts.

本文通过田间调查、田间试验及盆栽试验,研究了铅元素在茶树中的分布规律及吸收累积特性,并探索性地研究了茶园中可能存在的铅污染来源。

Forest fire spread models under different environments have been studied for many years and experimental and semi-empirical models for predicting surface fire spread have been set up.

:经过几十年的探索,国内外林火研究人员利用室内试验及野外火烧试验,对不同环境下森林地表火蔓延模型进行了研究,总结推导出许多地表火蔓延的经验模型及半经验模型。

According the result of experiment, the air pressure have effect on flashover voltage, the relationship of the flashover voltage and the number of insulator is linearity, and the change of potential distributing after insulator iced is the main reason why the outer insulation characteristic of iced insulator string declined.

试验研究结果表明,气压对覆冰绝缘子长串的闪络电压影响的特征指数与污秽绝缘子一致,覆冰可认为是一种特殊的污秽形式;在试验研究的串长范围内,闪络电压与串长成线性关系;绝缘子串覆冰以后的电位分布的变化是覆冰绝缘子串外绝缘特性下降的主要原因,但覆冰绝缘子串的局部电弧发展成完全闪络所需的时间比污秽绝缘子长,且受冰层的融化和冰凌状态的影响严重。

This thesis is based on October 8, 2005 7.6-level earthquake reconstruction in the Pakistan disaster areas. Pakistan Earthquake Bureau designed the architectural standard as the background of the China-Pakistan cooperation project, and a sub-project under the standard is discussed in this thesis. Ordinary sintering brick and stone-dust mortar masonry are set as window walls of masonry walls construction, which is also the object in this thesis. Based on the quasi-static experiment, the masonry walls earthquake damage patterns and seismic behavior are studied, underlining Pakistan formulation of the unified national standards for architectural design with basic data.

本文以2005年10月8日巴基斯坦发生7.6级地震后灾区重建、巴国地震局制订建筑设计规范为背景,以烧结普通砖和石头粉砂浆砌筑的窗间墙砌体墙片为对象,以拟静力试验为基础,研究了砌体墙片抗震的破坏形态和抗震性能,为巴基斯坦制订全国统一的建筑设计规范标准提供了基本试验数据,同时也为砌体墙片抗震性能研究提供了一种有限元计算方法。

It was carried out to optimize combination scheme experiment of three factors among level-border specifications, irrigation quota and fertilizer methods under the condition of level-border + plastic film irrigation for corn in the sand of soil by cross experiment methods.

为了研究玉米水平畦灌与膜上灌复合节水节肥的效果,采用正交试验法,在沙性土壤上,对复合灌水条件下的水平畦田规格、灌水定额和施肥方式3因素的最优组合方案进行了试验研究。

Currently the related research on the large-diameter cast-in-place pile embeddedin rock is relatively less.

作者在采用单桩竖向抗压静载荷试验对大直径嵌岩灌注桩竖向承载性状试验进行研究时发现,上述假定不适用于桩-岩体系的嵌岩桩承载性状的分析研究,并建立了桩—土荷载传递计算模型。

It was the first time that experimental studies of the flow characteristics and convective heat transfer in platelet regenerative cooling channels with high aspect ratio were conducted in China.

大高宽比再生冷却套在宽度上已属于微小通道,为考察其流动传热是否与常规尺度管道不同,本文理论分析采用经典N-S方程而未考虑微小尺度效应是否合理,研究流道高宽比等几何参数对其水力和对流换热特性的影响,分别搭建了挤压式水力实验台和泵压式对流换热实验台,设计了d〓=1.0~1.2mm,宽度为0.6~0.8mm,AR=3~15的5个不同高宽比矩形通道层板试验件,采用线切割加工槽道和扩散焊接盖板的制造工艺,得到了质量可靠的试验件,以水为工质,在国内首次对大高宽比层板再生冷却通道的流动和对流换热特性进行了实验研究。

In order to investigate the effects of free air CO2 enrichment on rice and wheat canopy energy balance and water use efficiency, filed experiments were carried out from 2002 to 2005 using the FACE system in Jiangsu province for rice and wheat canopy micrometeorology observations.

为研究大气CO2浓度增高对水稻和小麦冠层能量平衡和水分利用率的影响,本项目利用建立在江苏的我国唯一的FACE系统为试验研究平台,以作物冠层能量平衡理论为基础,将冠层小气候田间试验与理论分析相结合,定量分析了FACE条件下水稻和小麦冠层能量平衡各分量的变化特征。

From three trials comparing Terbinafine with Itraconazole, a statistically significant advantage in favour of Terbinafine was observed for negative culture and microscopy at the end of the trials. From two trials comparing Terbinafine with Griseofulvin, a significantly higher rate of negative microscopy and culture was observed with Terbinafine.

结果 入选的特比奈芬与安慰剂比较的研究有3项,特比奈芬与伊曲康唑比较的研究有3项,在临床试验结束阶段的真菌镜检和真菌培养转阴率方面,特比奈芬明显高于对照组和伊曲康唑组,并且具有统计学意义,而且认为特比奈芬在耐受性方面优于伊曲康唑;特比奈芬与灰黄霉素比较的临床试验有2项,特比奈芬的真菌治愈率明显高于灰黄霉素。

The experimental part design of rotationally molded truck fender was studied by combining theory analysis,experimental part design and experiment.

采用理论分析、试验制品设计与实验结合的研究方法,研究卡车翼子板旋转模塑成型试验制品设计问题。

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But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊!不用提了。提到肉,真是糟透了。

Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.

Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。