not practical

Interesting region is mostly the foreground image, Focus region selection has to estimate the foreground region for image segmentation algorithm is not practical.

由于兴趣区域为前景图像区域，聚焦区域选择算法需要选择前景图像区域作为聚焦窗口。由于前后景图像分割理论还不成熟，目前只能采用对前景图像区域进行估计的方案。

Your invention is clever, but not practical.

你的发明很巧, 但不实用.

Should avoid some not practical significance as far as possible the negotiations.

应尽量避免一些无实际意义的谈判.

If not practical, work hard, even better chance there will not be good performance.

如果不踏实，不努力，即使再好的机会也不会有出色的表现。

In constant research and practice, some programmes have been found and some programmes are not practical.

在不断的研究和实践中，有些方案被攻破了，有些方案不太实用。

Therefore 3D texture mapping is not practical for virtual exhibition system.

因此，无法使用三维纹理映射技术进行虚拟展示。

Is not practical to arrange the student teaching time, can only promote education retreat from the real effect.

不根据学生实际来安排教学时间，只能给教育起真正的促退作用。

It is not practical for a regulation to specify details of quality system elements for such a wide range of products.

对于如此宽泛的产品范围来说，一个法规规定具体的质量体系要素是不实际的。

Your plan sounds good, but it's not practical.

你的计划听起来不错，但不实用。

Paul was dreamy and not very practical.

保罗喜欢幻想，不太讲究实际。

But in fact, because of various constraints, it is not practical.

但事实上，由于受到各种条件的限制，显然不现实。

It is simply not practical to return thousands of articles in a feed.

但是在一个提要内返回数千篇文章不太实际。

The water flooding technology now available is not practical due to higher maintenance cost and difficulties in testing and controlling.

现有的注水工艺维护费用过高、能耗大，增加了油田的开发成本，同时难于测试与控制注水层的注水量。

It's simply not practical to divide the work between so many people.

把这个工作分给这么多人是完全不切合实际的。

It is not practical for having such a universal information gathering tool bundled with the product release.

要有一个如此广泛的信息收集工具与产品版本绑定，那是不切合实际的。

( I think I understand more about what that says about them than it does about us; the Japanese are nothing if not practical.)

（这句话说明了美国人和日本人的性格，不过我想我更理解这句话说明了日本人的哪些特质&日本人极其务实。）

The commentators all say it's not practical, but I'm for him trying.

评论员都说这不切合实际，但我主张他试试看。

I grant you it looks good, but it's not exactly practical.

我承认你说的，它好看，可并不实用。

Software technology that tested system is still not practical application.

即软件技术测试合格的系统仍然不能实际应用。

Therefore it is not practical to pursue a full integrated fare system.

因此，完全合并的收费系统并不切实可行。

Dr. Doudna said it was not practical to prohibit basic research.

杜德纳博士称，禁止这一领域的基础研究工作并不现实。

It's not practical to take more.

想多拿点也不实际啊。

From a practical viewpoint, I'd advise you not to go.

从实际角度考虑，我劝你不要去。

It is not easy to make practical suggestions for helping her.

要提出切实可行的建议帮助她并不容易。

Turning that vision into a practical reality is not easy.

把那种设想转化为实实在在的现实并非易事。

Blade Flurry is a great idea but it is just not practical.

血刃速攻是一个很好的注意，但是不实际。

When this is not practical due to schedule availability or test cell limitations, the package may be tested with a slave generator.

若由于进度安排或测试用单元的限制不能一同测试，则成套设备可与从动发电机一同测试。

To calculate the stability by using fixed parameter of soil character is not practical and;

采用固定的土性参数来计算其稳定性是不切合实际的；

However, he also said the regulations were not practical enough.

但是，他也表示，这些规定还不够切实可行。

He objected that the plan is not practical.

他反对的理由是：这个计划不现实。