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In this thesis, seed germination and root elongation test, early growth test were performanced by chemical spiked (Cu, Zn, Pb and Cd; Phenanthrenen, Pyrene; and1, 2, 4-trichlorobenzene) in four types of soils (red load soil, meadow brown soil, chestnut soil and dark brown soil) using wheat, Chinese cabbages , tomatoes , turnip and scallion as plants: The toxicity of heavy metals Cu.

本文选择4类典型土壤（红壤、草甸棕壤、暗棕壤和栗钙土），以（小麦、白菜、萝卜、西红柿、大葱）为供试植物，进行了重金属（Cu、Zn、Pb、Cd）、有机氯、多环芳烃污染的植物种子发芽与根伸长抑制试验；植物早期生长试验研究；以草甸棕壤为供试土壤，进行了重金属（Cu、Zn、Pb、Cd）单一、复合污染条件下的蚯蚓急性毒性实验；以草甸棕壤、污染土壤和生物修复土壤进行蚕豆根尖实验和土壤原生动物实验。

Sony, however, was fairly quick to jump to new formats: it introduced the D-50 portable CD player a year after the first compact discs were sold, and later rolled out MiniDisc and MP3 players under the Walkman brand.

但是 Sony 也很快地转移了格式： CD 一发明，它就推出了 D-50 移动 CD播放器，之后还推出过 Walkman 品牌的 MD 和 MP3。

Instead of buying a new CD, find an older one that you only listened to once or twice and put away.

不去买新的CD，而是找出一张你只听过一、两次的旧CD。

And the content of heavy metal elements including Cu,Zn,Pb,Cd and As,etc in the sediment on the bottom of Baoshan River are all seriously higher than the standard value.The paddyfield along both sides of Baoshan River has been seriously poll...

宝山河底泥中Cu，Zn，Pb，Cd，As等重金属含量严重超标；宝山河两侧稻土污染严重，应是宝山河水灌溉所致；宝山河流域稻米Cd，F污染十分严重，已经严重影响到当地居民的身体健康。

Thus, the author package from the CD set up for the Ghost Machine CD-ROM to start the computer, will be quick format all partitions on the hard disk, and Ghost will be re-C disk recovery.

于是，笔者从CD包中拿出针对这套机器的Ghost光盘启动计算机，将硬盘所有分区快速格式化，并用Ghost将C盘重新进行了恢复。

The results are as following: The concentrations of Cr, Cu, Pb, Cd, Zn, As and Hg were 0.57 7.37 l.89 0.18 36.99 l.57 0.018μgL^(-1) in the seawater, respectively. They are 30.11、30.62、32.61、0.106、68.56、2.48、0.027×10^(-6) in the sediment, respectively. Except Zn, other heavy metals are determined in the organisms. The concentrations of heavy metals are more in razor clam than in the mullet.

结果表明，表层海水中重金属Cr、Cu、Pb、Cd、Zn、AS和Hg的平均浓度分别为0.57、7.37、1.89、0.18、36.99、1.57、0.018μgL^(-1)；表层沉积物中重金属Cr、Cu、Pb、Cd、Zn、A，和Hg的浓度分别为30.11、30.62、32.61、0.106、68.56、2.45、0.027×10^(-6)气生物体内除了鲻鱼中未检出Zn外，七种重金属在缢蛏、鲻鱼体内均有检出，且缢蛏中重金属含量明显高于鲻鱼体内重金属的含量。

One for the production of recordable CD and MP3 CD burning software, support MP3, WAV format audio file recording of the conversion.

详细说明：一个用于刻录CD和制作MP3光盘的刻录软件，支持MP3、WAV格式音频文件的转换刻录。

The company is located in Chaozhou City Economic Development Zone, the first phase of investment 180 million yuan, covers an area of 30 acres, built plant 10,800 square meters, the introduction of the world's most advanced automated Sweden M2 NC recordable CD production lines 15 (30 head ), The project received approval from that day on, were completed in 108 days to complete the siting, planning, infrastructure, staff recruitment, equipment assembly debugging and October 2003 formally put into operation, with an annual output of international standard speed of 48-52 The blank CD-R discs 150 million.

公司座落于潮州市经济开发区，首期投资1.8亿人民币，占地面积30亩，建成厂房10800平方米，引进世界最先进的瑞典M2全自动数控可录式光盘生产线15条（30个头），项目从接到批文那天起，仅用了108天就完成了选址、规划、基建、员工招聘、设备组装调试，并于2003年10月正式投产，年产国际标准的48-52倍速的空白CD-R光盘1.5亿片。

Content characteristics of five kinds of detrimental elements,As,Cr,Cd,Pb,S,in iron ores imported from 23 countries,totally 490 batches,within recent two years were investigated by statistical techniques.Based on data distribution, interquantile robust statistics,and a brand-new data description technique,kernel density estimation,were used to acquire the standing values of detrimental elements.Multivariate statistical methods,including Principle Component Analysis and Factor Analysis,were used to ...

对我国进口铁矿石中的环境有害元素As、Cr、Cd、Pb、S的含量进行了总体统计分析，选用了四分位稳健统计分析及内核密度估计分别对铁矿中的有害元素As、Cr、Cd、Pb、S的含量的代表值进行估计，探讨了两种方法在代表值估计方面的特点，并使用主成分分析、因子分析等多元统计分析方法对有害元素的含量特征进行整体分类描述，确定了含量特征整体分类的主要有害元素，全面了解进口铁矿中涉及安全、环保等有害元素的质量状况。

The factors relevant to the running buffer and their effects on separation were investigated. The buffer solution composed of 30 mmol/L sodium borate and 2.4 mmol/L β-CD was found to be the most suitable electrolyte for separation. The second order dissociation constant range of honokiol was estimated. The content range of honokiol in Cortex Magnoliae Officinalis and was 3.42-5.98 mg/g, while the mean content of honokiol in its preparation 0.021 mg/mL.

优化了厚朴提取物的分离条件，考察了缓冲溶液浓度、pH 值、β-CD的添加浓度对分离的影响，确定了最佳的分离缓冲溶液组成为30 mmol/L 硼砂和2.4 mmol/L β-CD，pH 值为9.48；推测出和厚朴酚的二级离解常数pKa2 的范围为9.94-10.83；在优化的分离条件下，测定了厚朴药材和藿香正气口服液中和厚朴酚的含量分别为3.42-5.98 mg/g、0.021 mg/mL，和厚朴酚的线性范围是0.020-0.405 mg/mL，其线性相关系数R=0.998(n=5)，加样回收率为98.4-103.5%，RSD 为3.2-5.7%(n=3)。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。