已校准的

Although quality control and quality assessment are developed in clinical laboratories, reference materials are not widely used at present. The first reason is that all calibrators are imported and very expensive. The second reason is that some questions on the calibrator commutability are present in different measurement systems.

虽然我国的室间及室内质量控制工作在临床实验室中已广泛开展，酶校准品的应用价值也更受关注，但目前我国使用的酶校准品和质控品基本依赖进口，价格昂贵，在不同的测定仪器和试剂上应用时受到互通性限制。

Highly accurate calibration of a polarimeter of the type having at least four detectors involves using four known states of polarisation of an input light signal and at least one further state of polarisation.

具有至少四个检波器的类型的偏振仪的高精度校准涉及使用输入光信号的四个已知偏振态和至少一个其它偏振态。

Msgid "If connected to the Internet, you may press this button to set the time on this device using the timeserver above."

msgstr "如已连通互联网，您可以按此按钮以根据以上时间服务器校准这个设备的时间。"

By time-varying filtering, we realize the signal selectivity and interference suppression, especially for the signals with time-varying power spectrum. It is shown herein that conventional eigenstructure based methods are lower dimensional special case of the time-frequency subspace fitting method. The closed-form array response estimation algorithms for blind source separation in wireless communication is also developed in the dissertation by exploiting the data structure of second-order statistics of the array output in the presence of multipath. The proposed method achieves array response estimation with little constraint on signal property and propagation environment such as scatters or angular spread. Moreover, the array utilized here can be of arbitrary geometry and even uncalibrated. Since the closed-form solution is obtained, no misconvergency may occur and large amount of computation can be saved. The equivalent feed model and corresponding optimization designation are proposed to realize the downlink multi-user selective transmission. By coherent and non-coherent superposition of the electromagnetical field, multiple beams can be formed using a single array, so that each co-channel user signal is transmitted in each beam and will not interfered with each other. The proposed system scheme implements the digital beamforming and the channel allocation in the base band, therefore is suitable for the utilization of the radio software technology. The feasibility and effectiveness of the proposed model are proved by the RF experiment.

在窄带条件下，GSC－SSF方法还可以提高阵列的虚拟孔径，从而提高估计的性能；可以证明，Cyclic DOA 和SC-SSF方法可看作该方法的特例或近似； 3、提出了二维GSC－SSF方法和宽带谱相关DOA矩阵方法，利用信号的循环平稳特性解决了宽带条件下二维 DOA 估计问题，并具有阵元数少、计算量较小的特点； 4、提出了时频子空间拟合和宽带时频DOA估计算法，将联合时频分析的理论和方法引入到阵列信号的空间谱估计研究中，利用时变滤波实现信号选择性测向和干扰抑制，特别适合于谱时变信号；可以证明传统特征结构法可看作是时频子空间拟合方法的特例； 5、提出了多用户环境下阵列响应的估计方法——CARE方法，该方法对信号结构和传播参数（主要是散射源分布与角度散布）的约束较少，适用于各种几何结构的阵列甚至未校准的阵列，能够直接得到阵列响应的闭式解，因此计算量小、稳健性好，不存在收敛问题； 6、提出了针对多用户下行选择性发送的阵列等效激励模型、优化设计方法及其系统实现方案，通过空间场的相干叠加与非相干叠加使得单一阵列能够形成多个波束，并保证各波束内的用户信号各不相同且相互干扰最小；其系统方案具有在基带实现数字波束成形、信道分配并便于软件无线电实现的特点，其有效性已得到外场实测数据的证实。

At final calibration the amplifier is precision set for low distortion (typical 0.0025% THD) and then given a listening test to verify amplifier performance. Because all parts which wear out have been replaced and the amplifier is brought to the latest standards, EKSC Eagle provides a two year transferable warranty on every "Double Cap" unit.

在最后的校准精度的放大器是为低失真（典型值0.0025％THD）的设置，然后给他们一听测试，以验证放大器的性能，因为所有的磨损已被替换的放大器带来的最新标准的一部分。，EKSC鹰提供两年转让的保修每一个&双章&单位。

This test by the Chinese-owned scientific research institutions, quasi-measurement, and at the American Petroleum Institute Registration of all types of drilling tool joints, casing and tubing thread gauge proofing, certificate complete, the Register has been proofing regulations in Beijing and API record with the calibration of the workload of regulatory capacity and qualification.

本测试所拥有经中国计量科学研究院校准、并在美国石油学会注册的各类钻具接头、套管和油管螺纹校对量规，证书齐全，其校对规注册号已在北京和API备案，具备了校准工作量规的能力和资质。

This paper gives several methods to validate these new methods by analyzing images of stage micrometer, metallurgical sample, and images that consisting of definite area in geometric graph, Several kinds of validation methods including of traceability of a quantity value, printing microstucture graph, comparing microstucture photo with standard photos, length meansurement, and area meansurement are discussed in this paper.

通过分析显微镜刻度尺图像、金相样品图像，及给定特定图形且已知面积的图像，依据ISO/IEC 17025检测和校准实验室能力的通用要求，并结合金相检验标准，阐述了金相显微镜利用新方法的方法确认，其中包括量值溯源、金相组织输出、图谱比较、长度类测量和面积类测量的确认方法。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。