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1·The spatial aperture range of aerogel can be controlled by changing the ratio of the carbon aerogel to the tungsten carbide.

改变炭气凝胶与碳化钨的比例，可控制气凝胶的空间孔径范围。

2·The present invention has the features of wide processing hole aperture range, easy regulation of processing hole aperture, high processing efficiency, low cost, etc.

本发明具有加工孔径适应范围广、加工孔径尺寸可定量调整，加工效率高、所需成本低等特点。

3·The combination of telephoto capabilities and an f/2.8 aperture throughout the zoom range up to 500mm makes this a great lens for wildlife, sports and for you stargazers, astrophotography.

远摄镜头的性能加上f/2.8的光圈，再加上最长500mm的长焦端，使该镜头适合拍摄野生动物和体育赛事，也是天文爱好者进行天文摄影的绝佳镜头。

4·Range alignment is crucial in motion compensation of the inverse synthetic aperture radar (ISAR).

距离对准是逆合成孔径雷达(ISAR)运动补偿的关键。

5·The simple formulae of fast calculating aperture antenna directivity and gain are derived using antenna beamwidths. Applied range of these formulae are analyzed and discussed.

导出了用天线方向图的半功率波束宽度快速计算口径天线方向性系数和增益的简单表达式，分析讨论了这些公式的应用范围。

6·The parameters of triple Fabry-Perot etalon, namely, free spectral range, spectral width, peak offsets between each etalon, effective aperture and so on are optimized.

优化了三通道法布里-珀罗标准具的自由谱范围、带宽、峰值间隔和有效口径等参数。

7·Delivering excellent imaging quality at an accessible price, it's the first zoom for the Alpha range offering a wide F2.8 aperture over its entire zoom range.

提供价位适中优秀的成像质量，这是第变焦的阿尔法提供超过其整个变焦范围内广泛象素光圈范围。

8·To higher the ranging accuracy, first of all, a bigger array aperture is required to effectively estimate the range of target far away.

为了实现目标的全程测距，首先要求接收阵的孔径应较大，以实现对远程目标距离的有效估计。

9·An algorithm based on null steering techniques is proposed to suppress the range ambiguity of spaceborne synthetic aperture radar.

给出了基于零点指向技术抑制星载合成孔径雷达距离模糊的算法。

10·Range multi-aperture imaging algorithm is proved by theory that it can widen the swath and obtain high resolution at the same time.

理论上已经证实可实现超宽测绘带的距离向多孔径成像方法在增加测绘带宽的同时又可获得较高的分辨率。