查询词典 time-exposure

Many researchers have devoted their work to the development of modal analysis extraction techniques in order to obtain more reliable identification of the modal parameters. There are many damping identification methods, but each one has different merit and defect. In order to find which one is the most reliable method with respect to certain characteristics, this thesis focus on how to identify structure's damping in time domain. The following works have been done in this thesis: 1. Investigate four modal analysis methods——the LSCE Method, the Ibrahim Time Domain Method, the Time Domain Collectivity Modal Parameter Method, the Rational Fraction Polynomial Method and improve on the ITD Method in arithmetic.

本文主要做了如下工作： 1、集中研究了四种常用的模态识别方法，即最小二乘复指数法、Ibrahim时域法、时域总体模态参数辨识法及有理分式多项式法，并对ITD法在算法上进行了一定的改进； 2、建立结构动力模型，利用这四种方法在具体条件下识别结构的阻尼，并绘制相应的图； 3、讨论不同的情况下，不同的识别方法对阻尼识别精确性的影响； 4、基于业已明确的阻尼识别的精确性，根据研究的需要，指出在实际的识别过程中，如何选择最佳的识别方法以及识别过程中需要注意的问题； 5、选择最为精确的阻尼识别方法，以导师李书进教授在日本京都大学防灾研究所强震反应实验室所做的一足尺木制结构房屋的动力测试实验为实测模型，识别其阻尼； 6、在本文的最后，尽作者所知，提出了一些需要改进的地方，并对未来的研究方向给出了作者的建议。

No more time-consuming reapplication of sprays or washes - IncroMolds lower the adhesion between the surface of the molded article and the tool, providing highly effective mold release time after time.

IncroMold可降低铸件表面和成型工具间的黏附力，反复地提供高效益的脱模性；而不用浪费时间重复地喷洗或清洗铸件表面。

Both parties take delivery time and delivery place recorded in the original B/L issued by the Carrier as actual delivery time and delivery place. The actual delivery time shall be within the latest shipping date of the last lot stipulated in the 《Purchase Sheet》.

甲乙双方以承运人签发的正本提单中载明的交货时间和交货地点为货物实际交货时间和交货地点，该实际交货时间应在《购货清单》中规定的最迟一批货物交货期限内。

MuvAudio2 takes real-time recording to the next level by allowing recording speeds up to 10x* real-time, giving possibilities never before achieved by either digital conversion or real-time recording programs.

muvaudio2 需要实时记录到下一级允许记录速度高达10倍*实时时间，给予的可能性以前从未取得任何数字转换或实时录制程序。

Depending on the character of Lamb wave propagation , thedamage scat tering signals were time reversed and reemit ted to the damage , and then they will arrive at the damage synchronously so that the damage scat tering signal caught again will be amplified. Details about the time reversal amplifying process were analyzed and given. Based on the focalization ability of time reversal theory to the wave origin , the wave propagation was rebuilt by an image method which displays the damage as the focusing point .

根据信号传播自身的特性，研究采用时间反转聚焦方法使损伤散射信号能量叠加放大，从而提高信号的信噪比，分析给出了具体的损伤信号时间反转聚焦增强过程；利用时间反转法对波源的自适应聚焦能力，重建信号传播波动图，通过信号聚焦显示损伤位置和区域。

This study measured the isovolumic contraction time , isovolu-mic relaxtion time and ejection time of CCP group and normal contrast group. Late,tei index was calculated, relationship between Tei index and LV function index such as ejection fraction ,the ratio of transmitral peak velocity at early diastole to transmitral peak velocity at late diastole etc.

本研究通过对正常对照组与肺心病病例组使用频谱多普勒超声心动图测量ICT、IRT、ET时间计算Tei指数，观察肺心病左心室Tei指数变化并分析其与超声测定的心功能指标EF、E/A等相关性，探讨Tei指数评价肺心病左心室整体功能的价值。

Relay Actuation Time-This is the time from the application of relay coil voltage to the closure of the contacts, including contact bounce time.

继电器触动时间--从继电器线圈被施加电压到触点关闭的时间，包括触点弹跳时间。

Through a complete cycle of raising interest rates after this week lowered interest rates for the first time, but for the time being due to the abolition of tax on bank deposits, the bank's depositors did not reduce the number of receipts, before the rate cut The one-year deposit rate of return on investment for 3.933 percent, to cut interest rates after an investment return of 3.87 percent, and 10,000 yuan a year-to-deposit interest rate reduction of only 6.30 yuan, so that the bank will cut interest rates failed to exercise any time In the stock market to the role, it may not bring immediate relief to stimulate consumption, the rentier will still be money in the bank to ease food profits.

降低首次利率，但暂时由于税银行存款，银行的存款并没有减少多少收益取消前降息的一年为3.933的百分之投资回报期存款利率，削减后的投资回报百分之3.87的利率，并万元一年来，存款利息只有6.30元，率降低，使央行将降息未能行使任何在股票市场的作用的时候，却未必会即时援助，以刺激消费，食利者仍将在银行存款，以解决粮食利润。

The schedule shall allow approximately seven (7) days for the Engineer's review and additional time for resubmission of shop drawings and samples which may be unacceptable; however, the Contractor shall recognise that the time required for the Engineer's review may vary depending upon the quantity of materials submitted at any one time and the complexity of the shop drawing.

计划单应留有七（7）天时间用于工程监理审核，再留有多余的时间用于不合格施工图和样品的重新提交；但无论怎样，承包商应知道工程监理审核时间会根据承包商一次性提交材料的数量和施工图的复杂度的不同而不同。

Plato said that,When I pass through the woods time, saw several extremely good trees, this time, I have absorbed previous time have picked the wheat ear the lesson, saw this tree is also good, chose it, I feared I did not choose it, could miss felling's opportunity to return empty-handed, although it was not best one which I met.

柏拉图说道：当我穿越树林的时候，看到过几棵非常好的树，这次，我吸取了上次摘麦穗的教训，看到这棵树还不错，就选它了，我怕我不选它，就又会错过了砍树的机会而空手而归，尽管它并不是我碰见的最棒的一棵。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐