背拱

If it is a car seat, it must be protested with arched back.

如果它是个汽车座椅，我一定要拱起背来抗议。

I am a cat and I arch my beck.

我是一只猫，我拱起我的背。

I bent down, a extrados, deep breath, then quickly jumped into the water.

我弯下腰，一拱背，深深的吸了一口气，便快速的跳入水中。

An arch with mutually supporting voussoirs that has a straight horizontal extrados and ''.

有水平拱背和水平的内弧面的互相支撑的拱石的拱。

An arch with a straight horizontal extrados and a slightly arched ''.

一种拱背水平、拱的内面有个轻微弯曲的拱形。

An arch with a straight horizontal extrados and a slightly arched intrados.

一种拱背水平、拱的内面有个轻微弯曲的拱形。

Directed toward problems of the bridge superstructure, the thesis put forward proper reinforcement method—reinforcement on the extrados.

论文针对桥梁上部结构病害情况提出了合理的加固方案：拱背补强法，并为结构加固设计进行了理论推导。

On summarizing the common methods of reinforcement and reconstruction,bring forward a series new methods of reinforcement and reconstruction -from extrados reinforcing Two-way Curved Arch Bridge,including mostly reinforcing vault and skewback critical sections,at the same time optimizing deck structure reinforcement method;only reinforcing skewbackreinforcement method;altering arched arch construction for beam-arched arch reinforcement method.and combining condition of health rating with reinforcement method,as for different quality grade to select different reinforcement method.

在总结常用加固改造方法的基础上，提出了系列新的加固改造方法—从拱背加固双曲拱桥，包括主要加强拱顶和拱脚两控制截面，同时优化桥面结构的加固方法；仅加强拱脚截面的加固方法；改拱式拱上建筑为梁拱式拱上建筑的加固方法。并把技术状况评定等级与加固方法结合起来，根据不同的质量等级选择不同的加固方法。

Major characteristics:The breed has moderate body conformation,with mediumsized head,ununiform shape and depth transverse wrinkle,fairly small and lop ears,short and stout neck,wide and concaved back,arched ribs,large and drooping be11y,short and rough legs,unclamp rump,sleeping pastern,monkey-liked hooves.

主要特性：体型中等，颈粗短，有垂肉，背腰宽，背线多凹陷，肋骨拱曲，腹大下垂，四肢粗短，大腿欠丰满，多卧系，撒蹄，群众称"猴子脚板"，头中等大小，额部有形状和深浅不一的横行皱纹，耳较小、下垂，被毛为黑白花。

Major characteristics:The breed has moderate body conformation,with mediumsized head,ununiform shape and depth transverse wrinkle,fairly small and lop ears,short and stout neck,wide and concaved back,arched ribs,large and drooping be11y,short and rough legs,unclamp rump,sleeping pastern,monkey-liked hooves.

主要特性：体型中等，颈粗短，有垂肉，背腰宽，背线多凹陷，肋骨拱曲，腹大下垂，四肢粗短，大腿欠丰满，多卧系，撒蹄，群众称&猴子脚板&，头中等大小，额部有形状和深浅不一的横行皱纹，耳较小、下垂，被毛为黑白花。

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。