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Polyvinylidene fluoride is applied as sensor to monitoring the vibration of stayed cables ,and digital signal processor is applied to realize the FFT transform of signal ,the tension can be calculated.

聚偏二氟乙烯传感器通过监测应变得到拉索的振动信号,采用数字信号处理芯片实现振动信号的快速傅立叶变换,利用变换得到的振动频率计算出拉索的张力,实现斜拉索张力的在线测量。

Many researchers have determined and estimated tree transpiration by using the methods of rapid weighting, steady-state porometer, photosynthesis system, whole-tree photometer, ventilated chamber, weighting potted-plant, sap flow measurements, lysimeter, water balance, energy balance, Bowen ratio, eddy covariance, Penman-monteith Method, and remote sensing.

针对不同的植被覆盖类型,国内外许多研究通过各种手段和方法,如快速称量、稳态气孔计、光合作用测定、整树容器、风调室、盆栽称量、液流测定法、蒸渗仪、水量平衡、能量平衡、波文比、涡动相关、彭曼联合法和遥感等来估算林木蒸腾作用。

In this study, based on the Rnl, extinction coefficient k, transition coefficient of canopy layer stomatic resistance K', aerodynamics resistance ra and rc calculated with the data of Rn, LAI, rsi, the daily transpiration variation of Picea purpurea, Larix principisrupprechtii, Hippophae rhamnoides ,Betula platyphylla and Populus cathayana were studied in Datong County, Qinghai Province. Comparing with the practical transpiration variation measured by Li1600 Steady Porometer, the relative error of this model was less than ±15%, and the results were stabilized and tested by precision analysis.

本研究通过对Rn、LAI、rsi的实地观测,确定了林冠截流净辐射、消光系数、冠层阻力转换系数、空气动力学阻力和冠层整体气孔阻力,对青海大通地区紫果云杉、华北落叶松、沙棘、白桦和青杨的日蒸腾过程进行了模拟,与用快速称重法订正的Li1600稳态气孔仪实测蒸腾结果对比,模拟的相对误差在±15%以内;模型敏感性分析发现,温度、LAI以及rsi是决定模拟结果的主要参数,模型对各参数变化反应不敏感。

Trans-Blot Cells and Systems 170-3825 Trans-Blot Cell With Wire Electrodes and PowerPac HC Power Supply, 100120/220240 V, includes 2 gel holder cassettes, buffer tank, lid with power cables, 4 fiber pads, 1 pack precut blot absorbent filter paper (15 x 20 cm), power supply, power cord, instructions 170-3850 Trans-Blot System With Plate Electrodes and PowerPac HC Power Supply, 100120/220240 V 170-3853 Trans-Blot System With Plate Electrodes, Super Cooling Coil, and PowerPac HC Power Supply, 100120/220240 V, includes 2 gel holder cassettes, buffer tank, lid with power cables, 4 fiber pads, 1 pack precut blot absorbent filter paper (15 x 20 cm), power supply, power cord, instructions 170-3910 Trans-Blot Cell With Wire Electrodes, includes 2 gel holder cassettes, buffer tank, lid with power cables, 4 fiber pads, 1 pack precut blot absorbent filter paper (15 x 20 cm) 170-3939 Trans-Blot Cell With Plate Electrodes and Super Cooling Coil, includes 2 gel holder cassettes, buffer tank, lid with power cables, 4 fiber pads, 1 pack precut blot absorbent filter paper (15 x 20 cm) 170-3946 Trans-Blot Cell With Plate Electrodes, includes 2 gel holder cassettes, buffer tank, lid with power cables, 4 fiber pads, 1 pack precut blot absorbent filter paper (15 x 20 cm) Trans-Blot Cell Accessories 170-3912 Super Cooling Coil, required for all high-intensity transfers 170-3913 Gel Holder Cassette, includes 2 fiber pads 170-3914 Fiber Pads, 15.5 x 20.5 cm, 6 170-3920 Trans-Blot Standard Wire Electrode Card, cathode 170-3921 Trans-Blot Standard Wire Electrode Card, anode 170-3922 Trans-Blot Cell Buffer Tank 170-3923 Trans-Blot Cell Lid With Power Cables 170-3943 Trans-Blot Platinum Anode Plate Electrode 170-3944 Trans-Blot Stainless-Steel Cathode Plate Electrode 170-3945 Trans-Blot Plate Electrode Pair, platinum anode and stainless-steel cathode 16 规格:说明: Trans-Blot Plus

电泳转印槽组件 1。缓冲液槽及带有电缆的盖 2。凝胶支架转印夹 3。纤维衬垫 4。电极丝 5。电极板 6。特级冷却芯 Trans-Blot 转印槽是功能灵活的转印设备,可理想地用于多种转印应用。Trans-Blot 转印槽特点包括:*能进行多胶转印,可容纳3 块PROTEAN I xi 凝胶、6块Criterion 凝胶、12块Mini-PROTEAN 3 或Ready Gel 预制胶*多组参数灵活可设,可调节的电压设置(从30 V 的过夜转印到200 V 的1 小时快速实验)*电极间距设置为8 cm 用于标准印迹杂交,或设置为4cm 用于高强度印迹杂交*可选择板式电极:涂有铂金的钛作为正极,不锈钢为负极,能提供高强度电场和比其它电极更高的电流密度。或选择较经济的铂金电极丝*通过特级冷却芯和水循环仪来调节温度―是天然酶(4°C)或高强度转印的理想选择,随着转印时间增加(多达24 小时),不会引起缓冲液耗竭(在高强度转印中必须使用冷却芯,也推荐用于所有板式电极的应用)*带铰链的凝胶支架转印夹能避免滑动,确保凝胶与印迹膜间的紧密接触;每个转印夹都有颜色标记以保证在转印槽中的正确定位 Trans-Blot 转印槽的锁闭凝胶支架转印夹系统。转印夹(1)支撑凝胶(2)印迹膜(3)两侧有纤维衬垫和滤纸(4)确保凝胶三明治内的完全接触。凝胶夹垂直插入缓冲液槽中(5)。

The first part and the second part describe the different phases of automobile industry and the evovlement of service pattern of automobile service trade corporations at home and abroad, respectively;Furthermore,we ananalyzed the service patterns in different phases,summarizing the rule and preparatorily forecasting the trend of automobile service trade. The third part mainly illustrates the development of Henan Epoch Motor.

第三部分主要阐述了河南新纪元汽车销售服务公司的发展历程,根据企业生命周期理论判断新纪元公司正处于快速成长期;通过对新纪元公司宏观环境、微观竞争态势和企业自身的详细分析,明晰了企业现在所处的位置,进而提出了该企业成长期面临的问题。

Results The proper media for protocorm inducing, propagation and rooting were found in this paper, rapid propagation system of I.

结果 通过研究,筛选出了丽江山慈姑原球茎的诱导、增殖及生根培养基配方,建立了丽江山慈姑的快速繁殖体系,实现了大规模的组培生产。

At constant viscosity, by increasing the liquid flow rate, the liquid film's velocity is increased; at the same experiment condition, the frequency of the liquid film is same at the same radial direction; the air current has minimum effect on liquid film bottom flow velocity, while it has an obvious effect on liquid film surface flow velocity. The longer the distance between liquid film and the inlet, the lower the pulsatory frequency and longer the wavelength.

在粘度基本不变的情况下,随着液体质量流率的增加,液膜流动速度随之增加;在同一个实验条件下,沿圆管径向各质点的频率基本保持不变;气流场速度对液膜底层流动速度影响很小,对于液膜表面流动速度有着较大的影响;沿液膜流动方向,液膜的脉动速度逐渐增加,脉动频率降低,脉动波长变长,与报道的通过快速摄像得到的液膜发展趋势一致,证实用PDA研究液膜流动是可行的。

The existing port service capacity is analyzed with the method of associating with qualitatively and quantitively by exploring the connotation system of Chongqing port, now, which cannot already meet the new requirements of Chongqing's foreign trade and economic development.

通过对重庆港外贸集装箱口岸服务体系内涵的探索,运用定量与定性相结合的方法,分析其口岸服务的发展现状,探究出重庆港现有的口岸服务能力已不能满足重庆外向型经济快速发展的新要求。

Over the past couple of weeks we submitted 2 clients through the rapid rescore program and within 5 minutes we receive a report showing us exactly what the customer needs to pay off in order to increase the FICO score.

过去几周,我们提交了2客户通过快速rescore计划在5分钟内,我们收到一份报告显示,我们究竟需要客户付清,以提高信用评分。

In some experiments of rice flour andrice starch flour, Physicochemical indexes, swell power,DSC and dynamic rheometry weresimple, rapid and accurate method that could be used by the manufacture in predicting thetexture and cooking quality of rice starch noodles.

通过对籼米粉、籼米淀粉、粳米粉和粳米淀粉的理化指标测定、淀粉膨胀实验、DSC、以及动态流变测定在米线原料选择时可作为快速、简便和准确预测原料的加工性能、米线质地品质和蒸煮品质的方法。

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推荐网络例句

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。