Spherical metal tank is measured by light tangent method , and the uncertainty of measurement results is calculated by analysing the centre distance , horizontal angle and left and right tangent distance to the top etc 环形金属罐的测量采用光切法，通过分析中心距、水平夹角、左右切点天顶距等参数，计算球形金属罐容量测量结果的不确定度。
Among them , light irradiation method is flexible and simple . in this paper , various model of photorefractive waveguides are fabricated in linbo3 : . fe crystals and different dopant sbn crystals by using light irradiation method 制作光折变波导的方法有多种，其中采用光辐照法在光折变晶体中直接写入波导，方法灵活且对实验条件要求较低。
( 2 ) . inas quantum dots and wetting layer were studied and compared by using photoluminescence and time - resolved spectrum . luminescent mechanics model of inas quantum dots and wetting layer were presented , and it explained our results well ( 2 )采用光致发光谱及时间分辨谱对inas量子点及浸润层的发光性质开展研究和对比，提出单层inas量子点和浸润层发光的机理模型，较好地解释了实验结果。
Objective : the purposes of this study were to compare the expulsion rates of orthodontic brackets bonded by different methods to series fluorotic teeth and to find a effective method for increasing bonding strength of orthodontic bracket bonded to fluorotic teeth 摘要目的通过正畸临床上重度氟斑牙采用光固化贴面粘结托槽技术和托槽直接粘结技术的临床效果的比较，为临床氟斑牙的托槽粘结提供一种有效的方法。
Model dcw light - spot vectormeter , designed to from a complete set with a dynamic balabcing tester , is served as a display meter for phases and ampiltudes of dynamic unbalancing quantites . the meter is composed of two sets of measuring mechanisms in moving coil system , and is also put to use lightspot indication as well as polar scale Dcw型光点矢量表是供动平衡试验机配套作为动态不平衡量的相位和幅值的显示仪表，它是由2组磁电系测量机构组成并采用光点指示及极坐标标度。
In the testing , we experiment on a plate with a circle hole ( 2 - dimention ) and a ladder axis with arc transiting ( 3 - dimention ) , and compare the former to the result measured by moire method and the later to an aluminum axis with similarity of geometric structure by electric measure method . the results are closed to these of corresponding references . sequentially , it is proved that the theory is reasonable and the method is feasible 在算例方面，论文分别采用光弹性法和电测法对带中心圆孔无限宽板的平面问题和圆阶梯轴的三维问题进行了验证，并将分析结果与相关文献进行比较，得到了一致的结果，从而验证了理论分析的合理性及本方法的正确性。
This understand of stored nitrogen compounds restricted seriously the progress in the investigation of vegetative storage proteins . in the dissertation , we studied more extensively the cytology , biochemical properties and biological roles of vegetative storage proteins in swietenia macrophylla and in hevea brasiliensis by light - and electron microscopy , sds - page , page , immuno - blotting , indirect immunohistochemical localization and colloidal gold labelling and cdna clone techniques 采用光镜和电镜技术、 page 、 sds - page和免疫印迹技术、电泳凝胶过碘酸? schiff试剂染色、间接免疫荧光和电镜免疫细胞化学定位技术以及cdna克隆技术，较深入地研究了大叶桃花心木和巴西橡胶树的营养贮藏蛋白质的细胞学、生物化学性质和生物学功能。
Considering the vectorial property of the time - average energy flow density , a new extensive definition of the light intensity has been proposed . it is expressed as the time average of the amount of energy which crosses in a unit time and a unit area , so it can be applied to measure quantity of the light intensity at any curved surface 对于非傍轴标量光场能量传输规律的描述则必须考虑其能流密度的矢量特性，应当采用光强的精确定义? ?单位时间单位面积上所流过能量的时间平均值来精确地描述某一横截面上的能流，这也与光强的实际测量值是一致的。
The programs of system are written with assemble language . in order to resolve the problem of signal jammed , not only we used hardware ( photo couplers , watchdog , special parts , etc . ) , but also used some arithmetic ( average , wavelet , etc . ) . after analyzing the deficiency of the popular mechanical instrument in motorcycle , this paper focuses on researching and designing the digital instrument . the developing work of ( the research of the led digital multi - parameters instrument in motorcycle ) has been finished and is being commercializing packaged 我们采用了专用的a / d转换器作为模拟量的测量，采用光耦器件作为车速、发动机转速信号的输入，采用高亮度的led器件作为在强光下显示器件，采用两个独立的微处理器以提高系统的可靠性，采用模拟条和数码管同时显示以符合驾驶人员的习惯，同时通过改进算法，实时处理车速和发动机转速与数据显示和数据存储等技术难点。
