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One of the most common ways to describe a wood's tonal properties is in terms of its frequency range,which is often broken down into low-end frequencies,mid-range and high-end frequencies.picture it as a visual spectrum,as we've done in the chart to the right,with the lower frequencies on the left and the higher frequen-cies on the right.the graph line for each wood visually depicts its general tonal range.rosewood and ovang kol,for example,tend to resonate with more low-end frequencies,whereas koa,cocobolo and maple tend to sound brighter from having more top-end frequencies.note also rosewood's"scooped"midrange and ovang-kol's fuller midrange.the doted lines for walnut and koa denote the expansion of low-end frequency range as the guitar opens up after a period of playing it.

最常见的方式描述了木材的声音特性是在其频率范围内，这往往是细分为低端频率，中端和高端frequencies.picture它作为一个视觉频谱，因为我们'维生素E这样做的图表，以权，以较低的频率在左边和更高的频率，种上right.the图线的每一个木材视觉描绘的一般音调range.rosewood和ovang科尔举例来说，往往会产生共鸣更多的低端频率，而兴亚， cocobolo和枫树往往从健全光明有更多的高端frequencies.note也花梨木的&收购&的中端和ovang -科尔的充分midrange.the doted线的核桃和兴亚指扩大低端频率范围内的吉他开辟了一段时间后，打它。

It revealed: Firstly, the plant community, the major environmental factors illumination degrees, surface temperature, air temperature, day air humidity changes curve and changes in point of curve similar; Secondly, measuring three points mixed lawn-Chinese littleleaf box-Guohuai plant community in the three observation of the ecological effects of the plant community most obviously, its sunshade rates, the average surface temperature 0 cm Service rates, the average surface temperature -5.0 cm Service rates, the average temperature cooling rate, the average humidification effect respectively 36.3%, 34.7%, 18.9%, 6.9%, 13.9%; wood forest plant community occasions, mixed lawn-Chinese littleleaf box plant community smallest.

以校园为例进行实地观测，比较详尽地分析了生物种群组成的多样性对园林生态系统的影响，结果表明：①植物群落内的主要环境因子光照度、地表温度、空气温度、空气湿度的日变化曲线与对照点日变化曲线相似；②3种测点中混合草坪－黄杨－国槐植物群落在3种观测的植物群落中生态效应最明显，它的遮光率、地表0 cm处平均降温率、地表－5.0 cm处平均降温率、气温平均降温率、平均增湿效应分别为36.3%，34.7%，18.9%，6.9%，13.9%；桐树林植物群落次之，混合草坪－黄杨植物群落最小。

The choice where complex conditional testing is required is between reliable fast code and unreadable and unfixable code, most eventually take the choice of doing this type of testing in a reliable and fast manner so that the difficult work in terms of speed and capacity can be done in a reasonably timescale.

复杂的条件测试可以用两种形式的代码构造：可信、快速的代码，不易读、不易修改的代码；大多数人最终选择了第一种方式，这是的那些困难的工作在可以接受的时间尺度内完成。

Hepatitis B virus is the smallest DNA virus which is a member of the viral family Hepadnavirida. It uses its DNA as template and the RNA polymerase II of the host cells to transcribe its viral transcripts. There are four major RNAs transcribed from HBV genome. All of the four major transcripts are unspliced, terminated at a common site, polyadenylated at the 3' terminal and capped at the 5' terminal.

B 型肝炎病毒属於肝病毒科，为目前已知最小的去氧核醣核酸病毒，利用其病毒的去氧核醣核酸以及宿主细胞内的核醣核酸聚合酶可转录出四种主要的核醣核酸产物，此四种主要的转录产物均未经剪接并终止於核心开放编阅序列的共同polyadenylation 讯号，且在其5'端均经过capping修饰。

The results of the effect on HSV-2 virulence experiment and the sample-canceling experiment showed that the four sulfated oligosaccharides had no virucidal activity to HSV-2 but inhibition activity.

初步探讨了低聚糖硫酸酯的抗病毒作用机制，由不同时间加药实验结果推测四种低聚糖硫酸酯具有类似的作用机制，可能作用于HSV-2与细胞的吸附阶段，不能抑制病毒在细胞内的复制过程；低聚糖硫酸酯的作用对象为病毒；对病毒毒力的影响实验和撤药实验说明四种低聚糖硫酸酯不能杀灭HSV-2，仅起抑制作用。

Each day, every kinds of oil are produced and consumed, so batched transportation is intermittent for each oil kind.

在一条成品油顺序输送管线中，顺序输送的循环次数越少，每一种油品的一次输送量越大，在管道内形成的混油段和混油损失也随之减少，但另一方面，油品的生产和消费通常是均衡进行的，各种油品每天都在生产和消费，顺序输送管道对每一种油品来讲是间歇输送。

Human fibroblast interferon mRNA was prepared from poly I:C-cycloheximide superinduced human diploid cells by phenol-octanol exhaustion method followed by oligo-cellulose chromatography.

其主要实验根据是：超诱导细胞mRNA含量明显高于正常细胞；干扰素mRNA在非洲鲫鱼卵母细胞内转译的产物具有明显的抗病毒活性；转译时~14C-苯丙氨酸的掺入明显高于正常细胞；种属特异性实验及酶的敏感性实验证明转译产物中存在的抗病毒物质是一种人的干扰素蛋白质。

Ccording to the characters of porous metals, a new effective bulk modulus formula with simpler expression was obtained by considering the heat exchange between the metallic skeleton and air in pore on the basis of phenomenological Biot-Allard model, therefore an extended sound absorption model was put forward.

bstract 根据金属骨架多孔材料的特点，在Biot-Allard刚性骨架多孔材料内流吸声模型的基础上，考虑金属的热导特性，推导出一种新的、形式较简单的有效体积模量表达式，从而得到了一种扩展的吸声模型。

Schwing poppet valve hydraulic piston pump be used in many municipal and industrial projects world wide.Today,Schwing was recognized as technology leader of"Dewatered sludge Pumping System".Schwing pump can pumping the sludge even with 56%solid content,for other inorganic material even with 80%solid content.Schwing units have operated continuously for years with 99%availablity.For sludge storage,Available in circular or rectangular design,the sliding frame/push floor technologies provide low cost methods to store large volumes of material w你好le awaiting final disposal.Schwing sliding frame system in the bottom of the silo,disc harge the sludge with the screw into sludge truck or Schwing pump.The typical installation is silo with pump installed beside the dewatering mac你好ne.A Schwing silo can be integrated into the process stream to equalize surges in solids production and subsequently meter cake to final disposal.Large diameter storage silos are useful for truck loading,and finally,both sliding frame and push floor designs are effective as receiving stations used to accept sludge hauled in from other facilities.Ultimately,the storage volume of the silos and bunkers dictate the plant''s flexibility in disposing of the solids.

施维英的晋升阀液压柱塞泵广泛应用活着界规模内的城市管理工作以及工业污泥输送项目今日，施维英被公以为是世界规模内&脱水污泥泵送体系&的科学技术带领者施维英泵可以泵送固体含量达56%的活性有生命的物质脱水污泥，甚或者固体含量达80%的非有生命的物质其它稀浆与污泥施维英泵颠末多年不中断地事情，靠患上住性仍维持在99%施维英滑架体系位于料仓的底部，可以将污泥排入卡车或者施维英泵中用来暂存污泥以及装车的料仓较典型的应用是以及施维英污泥泵一路被安装在污泥脱水举措措施相近施维英料仓在污水措置惩罚厂的预设中首要负担3种脚色，料仓被集成处措置惩罚流程之中，均衡物料出进，并对终极排出的污泥计量料仓用于装车料仓的储存体积说了然污水措置惩罚厂措置惩罚污泥的规模料仓可以用来吸收暂存从其它污水厂送来的污泥，尔后送到后续污泥措置惩罚装备中滑架技能已在被证实是最具国际性最有用率的技能

Asian citrus psyllids and in the Citrus Aphis citricola both the phloem feeding insects, but insect feeding behavior of two significant differences, in addition to two kinds of insects share a common EPG wave (A wave, B wave, C wave, E1 wave, E2 wave, G wave), the wave of Aphis citricola appeared in the path of many pd wave, pd wave is aphids in plant cells in the epidermis during exploratory puncture the cell membrane caused by feeding, which kind of contact information on the intracellular selection in the aphid host plant play an important role in the process.

求中文翻英文翻译，很急，谢谢亚洲柑桔木虱和绣线菊蚜在沙田柚上都为韧皮部取食性昆虫，然而，两种昆虫的取食行为有明显差异，除了两种昆虫拥有共同的EPG波形（A波、B波、C波、E1波、E2波、G波）外，绣线菊蚜在路径波中出现很多pd波，pd 波是蚜虫在植物表皮层细胞的试探性取食时刺破细胞膜而产生的，这种对胞内信息的接触在蚜虫选择宿主植物的过程中起了重要作用。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。