截线

Up to a certain sum of the interior angles on one side of the transversal the two lines might indeed meet.

截线一侧两内角到达一定的和数，两直线可能一定相交。

Method］twelve cases with extremities invasion bone tumor were reviewed,including 6 male and 6 female.the average age was 37.1 years old.according to the mri,typeⅰtumor located in metaphysic and growth eccentricity,and was treated with outside tumor osteotomy with reservation of one side as integumentale,the cut line was shape of "匚".type ⅱ tumor was with invasion part articular surface,and was operated with part joint osteotomy with reservation of one side as integumentale,the cut line was shape of"l".type ⅲ was with invasion total joint surface and as integmentale,all tumor segment including joint could be cut,but the shape of cut close to the diaphysis was echelonment.

方法］12例侵袭性骨肿瘤患者男6例，女6例；平均年龄37.1岁。根据mri表现选择不同截骨方法，ⅰ型肿瘤位于干骺端偏心性生长，采用保留一侧皮质骨的肿瘤外截骨，截骨线呈&匚&形。ⅱ型病例肿瘤侵蚀部分关节面，采用保留一侧皮质的部分关节截骨，截骨线呈&l&形。ⅲ型病例肿瘤侵蚀整个关节面和骨皮质，可切除包括关节在内的整个瘤段骨，只是近骨干侧截骨呈阶梯状。

On the tailward side of the terminator plane, the anisotropy of the fast magnetosonic wave speed dominates, so the cross section of the bow shock is wider in the direction perpendicular to the IMF.

对于终端面尾侧，快磁声波速度的各向异性起主导作用，弓激波截线沿IMF垂直方向的宽度大于平行方向。

Some of these considderationsinclude insertion loss, cross talk, propagation delay, and unterminated stubs.

需要考虑的因素包括插入损耗、串扰、传输延迟和未端接短截线。

The advantages of the tree configuration include the absence of unterminated stubs and the fact that the channels have similar characcteristics.

树形配置的优点包括没有未端接的短截线以及通道具有相类似的特性。

The advantages of these configurations include the absence of unterminated stubs, access to all channels, and similar path characterristics. Disadvantages include the need for extensive cabling and the use of many coaxial relays.

这种配置的优点包括没有未端接短截线、可访问所有通道，以及相类似的通道特性；缺点包括需要大量的电缆连接，并且使用同轴继电器。

Tie-line and level-law calculations show that low-carbon ferrite nucleates and grows, leaving the remaining austenite richer in carbon.

由截线及杠杆定律分析可知，低碳铁素体成核并长大，剩下含碳量高的奥氏体。

In this paper an innovative method for machining sculptured surfaces is presented. By using a disc cutter with a concave end instead of traditional ball-ended or drum-shaped tools, and adjusting the cut- ted axis to swing relative to the component being machined under some special rules, the envelope formed by the trace of the tool-nose may have the same derivative up to the third order as the required theoretical surface.

本文提出了一种加工自由曲面的新方法，即采用中凹的盘形铣刀取代传统的球头或鼓形铣刀，在每一行程中让刀具轴线相对于工件按特定的规律摆动，使得在垂直于进给方向的法截面中，由刀尖轨迹形成的包络面与理论曲面的法截线具有相同的1～3阶导数，从而在保持精度不变的前提下，使实际行程次数得以大幅度的减少。

By means of using a disc cutter with a concave end instead of traditional ball-ended or flat-ended ones,and adjusting the cutter axis to move relatively to the component being machined according to some special rules,the envelop formed by the trace of the tool-nose in each pass and the required surface have the same derivatives up to the second order in the plane normal to the feeding direction.

采用二阶密切曲率法，即采用中凹的盘形铣刀取代传统的球头或鼓形铣刀，在每一行程中让刀具轴线相对于工件按特定的规律摆动，使得在垂直于进给方向的法截面中，由刀尖轨迹形成的包络面与理论曲面的法截线具有相同的1阶？

Using the principle of Projectiv e geometry and Analytic geometry,we have intact analysed about the cut and hand in line of taper and Geometry proved the form produced by the special-position -leve and the general-position-level.

利用射影几何和解析几何的原理对圆锥截交线进行了完整的分析，对特殊位置截平面与一般位置截平面产生的截交线的形状进行了几何证明，为截交线的形状判别与绘制提供了理论依据。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。