这为合理选择光学发射天线的孔径提供了理论依据。
This provides theoretical basis for reasonably selecting aperture of optical transmitting antenna.
介绍了选择节流孔板的计算方法，包括节流孔板级数、压力差和孔径的计算。
As for the selection of throttle orifice, methods for calculating the number of orifice stages, pressure difference and orifice diameter are described as well.
在实际干涉成像中，可以选择适当的孔径间距来获得较好的干涉条纹，从而获得目标的高分辨率像。
Therefore, proper distance between the transmit apertures could be selected to get better interference fringes and high resolution images.
结论通过选择材料和优化制备条件，可制得具有合适孔径和孔隙率，顺应性和其它性能与天然血管匹配的PU小径血管。
Conclusion Small diameter grafts with proper pore sizes, porosity, matching compliance can be obtained by selecting PU materials and optimizing the preparation conditions.
合理选择子阵列构造可以解决兼并信号源分辨问题和降低阵列孔径损失。
Generally, the method can solve the sources come from the same DOA with auto-pairing and has lesser loss of the array aperture.
如上系统可以根据要打印的不同性质的液体，选择合适孔径的喷孔，实现可靠的打印。
The sprouting hole with suitable aperture can be selected for the system according to the liquid of different natures, so as to realize the reliable printing.
提高绳索取心钻进效率要做到：一是根据孔深、钻孔孔径、钻孔所遇地层及其岩性的完整程度、构造特点、风化带发育深度等选择套管的直径及下入深度；
To raise wire-line drilling efficiency need to: 1. Select casing diameter and depth according to drilling depth, diameter, strata drilled and rock integrity, structure features, weathered layer depth;
该暂堵剂不用与地层孔径进行匹配，只需根据地层温度选择产品型号。
合成孔径成像系统在获得高截止频率的同时，降低了系统的中频性能，并且合成孔径成像系统的信息获取在方向上具有可选择性。
The cut-off spatial frequency is got higher at the cost of the loss of mid-spatial frequency, and the information got by the system are different in all directions.
利用被动锁模、自孔径选模适当选择脉冲氙灯放电网络参数，得到了近似矩形的激光脉冲。
Approximately rectangular pulse shape is obtained by passive mode-looking, self-aperture mode-selection and proper selection of parameters of the discharge network for pulsed Xe-lamps.
去毛刺抛光工具刷在直径的选择上，一般比被加工孔径大5 ~ 15%即可。
Deburring polishing tools brush in diameter than the choice, generally by processing aperture big 5 ~ 15% can.
去毛刺抛光工具刷在直径的选择上，一般比被加工孔径大5 ~ 15%即可。
Deburring polishing tools brush in diameter than the choice, generally by processing aperture big 5 ~ 15% can.
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