选择器

The first step in designing AN absorber is to select the absorbent.

吸收器设计的首要步骤是吸收剂的选择。

It also has a power supply for the amplifiers and it may have an accelerometer amplifier as an option.

它也有放大器的电源，并且它也许有过载信号器放大器作为选择。

The result indicates that in the designed center of the wavelength, the retarder is not only confined within the low dispersive medium, but high-index material with higher dispersion can also obtain good achromatism, and at the same time the bigger angle of total reflection can improve achromatism of the phase retarder.

从全内反射相变方程出发，以菲涅尔菱体为例，分析了消色差相位延迟器的相位延迟量随折射率变化的光谱特性，结果表明：在所设计的中心波长处，延迟器件不仅仅局限于选择低色散的材料，色散较大的高折射率材料制作的延迟器件也可以具有良好的消色差性，且较大的全内反射角有利于改善延迟器件的消色差性。

For the patients who need implanted pacemaker without enough money, the decoction of Ephedra, Aconite and Asarum is a better choice. It can vigorously improve the rhythm of patients with bradyarrhythmia and survival quality.

对于需要安装起搏器而经济条件达不到的患者，麻黄附子细辛汤是一种较好的选择，可以很好的改善慢型心律失常患者的心律，提高患者的生存质量。

The selection of the data transmission scheme is carried out during an active communication link between the first and a second transceiver unit.

在第一和第二收发器单元之间的活动通信链路期间执行对数据发送方案的选择。

It is widely used, well documented, reliable, and has many compatible sensor and actuator modules available.

它被广泛地应用，有详尽的引证，可靠性高，并且有很多兼容的传感器和执行器模块可供选择。

In addition, dynamic panels on the page can be hidden from view in thewireframe editor for easier access to widgets beneath them. To hide adynamic panel, click on the blue square to the right of the dynamicpanel name, or to hide all the panels on a page, right-click onthepage name and select Hide All.

进一步，为更方便的访问动态面板下侧的部件，在线框编辑器的视图中可以隐藏页面上的动态面板，要隐藏一个动态面板，可以单击动态面板名称右侧的蓝色方框，如果要隐藏页面上的所有动态面板，可以右击页面名称后选择Hide All菜单项。

In this paper, a new real AdaBoost algorithm based on multithreshold method was developed. Through the selection method of multioptimization threshold and combining the strategy of weak classifier threshold selection in discrete AdaBoost algorithm, the rational division of sample space was implemented.

对基于连续AdaBoost算法的人脸检测方法进行了改进，结合离散AdaBoost中弱分类器的阈值选取策略，通过多重最优阈值选择方法实现了样本空间的合理划分。

Methods Thirty patients with acute myocardial infarction and diabetes mellitus with ventricular premature beat in 24-hour ambulant electrocardiogram, thirty patients with acute myocardial Infarction alone and thirty patients withiout obvious heart diseases were categorized into A group,B group and C group,respectively.

选择24小时动态心电图有室性早搏的心肌梗死伴糖尿病患者、单纯心肌梗死患者和无器质性心脏病患者各30例，分别手工测量反映HRT的两项指标震荡初始和震荡斜率，对三组患者进行比较。

The contents of trace elements of Ag, Cu, Zn, Fe, Pb, Sb and Bi in gold foil were determined directly by ICP-AES method and the gold content of gold foil was calculated. The authors obtained optimal working parameters of the instrument and studied the selections of power in analytic conditions and analytic curve, the optimization of the pressure of nebulizer as well as the influence of lifting capacity of the sample.

摘 要：研究了ICP-AES法直接测定金箔中的Ag、Cu、Zn、Fe、Pb、Sb、Bi微量元素，通过差减法计算出金箔的含金量，确定了仪器最佳工作参数，研究了分析条件中功率的选取、分析线的选择、雾化器压力的优化、样品提升量的影响，并对金箔中Au基体可能存在的干扰等进行了探讨。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。