Elimination of the background noise in speech is one of the most challenging problems of speech signal processing.

Blind source separation ( BSS) is a traditional yet challenging topic in signal processing, in which the separation is performed only depends on the observed signals, without knowing source signals and the mixing channels.

盲源分离是信号处理中一个传统而又极具挑战性的课题，一般指在源信号不可测及混合系统特性未知的情况下，仅由观测信号分离出各源信号的过程。

It has a leaky roof and many other problems.

屋顶有漏洞，还有许多其他问题。

Application of pod to prediction of wind pressure fields of pitched roof

POD方法在双坡屋盖风压场预测中的应用

Construction Technology and Method of Pitched Roof

坡屋面施工工艺及方法

Prediction of Wind Pressure Field on Pitched Roof Using POD

利用POD对双坡屋盖风压场预测

Popularization and Application of Pitched Roof with Steel and Wood Structure

钢木斜屋顶的推广应用

Construction technology of structure of reinforced concrete pitched roof

钢筋混凝土斜屋盖结构施工技术

Discussion on the Pitched Roof Structure and the Utilization of Its Attic

建筑坡屋顶及阁楼的研究利用

Some successful design examples of pitched roof with complex shapes are shown.

文末给出若干复杂坡屋顶设计的成功例证。

Strike me pink! bill jones! I haven't seen you for ages.

这太让我吃惊了，比尔·琼斯！我好久没见你了。

The former prime minister is nominated for a purple passage about the night spent with his wife Cherie following the news of the Labour leader John Smith's sudden death.

令前首相布莱尔入围的是一段词藻华丽的文字，描写了他和妻子切丽在工党领袖约翰•史密斯突然去世后度过的一个夜晚。

The article is a purple passage.

这篇文章词句华而不实。

How could disaster ever come to women such as they when their stalwart gray line stood between them and the yankees?

她们有这样一道顽强的灰色防线在保护她们不受北方佬的侵害，还怕什么灾祸会降临到她们头上来呢？

The color, margin fitness, cervical gray line and fracture of the ceramic crowns were checked the following 3 years.

在烤瓷冠完成时和复查时，临床检查冠的颜色、颈缘染色、边缘密合度和牙折断、折裂情况，观察3年。

The dark blue line shows the client's path through state space, while the gray line shows the server's.

深蓝色的线表示状态空间下客户端的路径，而灰色的线显示的是服务器的。

To the class of 2014, I congratulate you on taking your place on the Long Gray Line.

2014级的毕业生们，祝贺你们承接了西点军魂的使命。

The Long Gray Line has never failed us.

西点的学子们从来没有让我们失望。

Objective Purpose of the study was to investigate the content of Nickel ( Ni) and Chromium ( Cr) ion in gingival tissue and blood, and to discuss the reason of gray line in gingival after wearing non-noble Porcelain-Fused-to-Metal crown.

目的研究家兔前牙行非贵金属烤瓷冠修复后牙龈组织及血液中镍铬元素的含量，初步探讨产生牙龈灰线的原因。

Lastly, effects of annealing under high magnetic field on the structure of spheroidal graphite cast iron, gray cast iron and 45# steel were investigated. The solidification of Al-12% Si under high magnetic field was also carried out.

最后本文还分别进行了灰铁、球铁、45钢强磁场下退火处理，以及Al&12%Si合金强磁场下凝固实验，并对实验结果进行了分析。

The equipments can cast aluminum alloy, stainless steel, copper, ductile iron, gray iron, vermicular iron and different conventional metal parts.

并且可以浇铸：铝合金、不锈钢、铜、球铁、灰铁、蠕铁等不同常规金属件。