查询词典 null ellipse

To this end, the ultrasound cardiograph is filtered and fuzzily boundary enhanced, a threshold is set to obtain a binary image, then the heart's boundary is got through ellipse curve fitting, cubic spline interpretation and smoothing.

首先对超声心动图像进行滤波以消除图像中的噪声，并运用模糊数学理论进行模糊边缘增强，提取超声心动图像的内外膜边缘信息；接著对超声心动图像作二值化处理和椭圆曲线拟合，初步得到心脏的内外膜边缘；再采用相应的三次样条插值和平滑技术，得到光滑、连续的心脏内外膜边缘。

We present k -Degree T-Bezier basis function and reparametrize it on the interval [0,1],representation of ellipse and cardioid and G~1 condition of T-Bezier curves based on the analysisof T-Bezier basis function and terminal properties. The results have definite geometric meanings that are useful for surface modeling.(3) We presents G~1 of C-B-spline curves and C-Bezier curves.

3给出了C-曲线间的G~1拼接条件，利用C-Bézier曲线能够精确表示半圆弧和半椭圆弧的性质，在实际应用过程中需要精确表示半圆弧和半椭圆弧的地方利用C-Bézier曲线来代替C-B样条曲线，从而较好的解决了在C-B样条造型系统中无法精确表示圆弧的问题。

The orbit of a celestial body is usually in the shape of ellipse.

哪个错了。这是个折磨了我两年的题了，望解。

The orbit of a celestial body is usually in the shape of ellipse .

参考译文：一个天体的运行轨道常常是呈椭圆的形状。

The o rbit of a celestial body is usually in the shape of ellipse .

哪个错了。这是个折磨了我两年的题了，望解。

Grab your Ellipse Tool and make a circle in the center of your document.

抓斗您的椭圆工具，使一个圆圈的中心，您的文件。

A new algorithm for obtaining the centre of ellipse is brought forward.

提出了一种椭圆圆心定位算法。

Shewears the ellipse the hat, the tinted chin strap looks like the reedthe leaf.

她戴着椭圆形的帽子，浅色的帽带好像芦苇的叶子。

It makes use of the geometric relations between an ellipse and its circumcircle and inscribed circle.

引言对于象光栅显示器这样一类可视化的设备，其图形完全由显示器像素的亮度和色度形成。

Select the Ellipse tool, white color from palette and draw a circle for the screw.

选择椭圆工具的，白色的调色板和画一个圈的螺钉。

Although translator has turned from being a crystal ball by which the original culture can unrestrainedly penetrate to another crystal ball by which the target culture can freely traverse, the translator's personal embodiment, in the process of cognitive act, are still absent in translation studies. Translators are still subjects without body or simply disembodied subjects.

译者虽然由原语文化可以自由穿透的玻璃球变成了译语文化可以自由穿越的玻璃球，但译者认知过程中的个体体验在翻译研究中依然缺席，译者依然仅仅是一个没有躯体体验的主体。

Chillingly, he claimed our technology is 'not nearly as sophisticated' as theirs and "had they been hostile", he warned 'we would be been gone by now'.

令人毛骨悚然的，他声称我们的技术是'并不那么复杂，像他们一样，和"如果他们敌意"，他警告说，'我们将现在已经过去了。