In this paper, blind welding, cold shortness and hydrogen brittleness are mainly discussed as the major problems arising in underwater wet welding.

A brief summary of segregation. especially nonequilibrium of interface& grain boundary, is presented in this paper, and the relationship between segregation of intergranular boundary and the cold brittleness is also introduced.

简要介绍了偏聚特别是晶界非平衡偏聚研究的历史和现状.并扼要介绍了品界非平衡偏聚与材料冷脆之间的关系。

The increase of phosphorous content will decrease the ductility and toughness of the steel, especially with the increase of carbon content in steel, this phenomenon is usually called "cold brittleness".

磷对绝大多数钢种来说是有害元素，磷含量的增加会使钢的塑性和韧性降低，通常称为冷脆性。随着钢中碳含量的增加，这种现象更为严重。

The acrylic emulsion binder had good film forming, better adhesion and chemical stability, its threadlike structures would bring weakness of heat-adhesive and cold brittleness and clogging screen.

丙烯酸酯类粘合剂具有较好的成膜性，良好的粘着力及化学稳定性，但其线型结构特点，易造成聚合物薄膜出现热粘冷脆及印花堵网等问题。

Many factors must be considered in the design of a large sized cryogenic atmospheric pressure ammonia warehouse. The material of liquid ammonia tanks must resist the cold brittleness at-33?

设计低温常压大型氨库应考虑诸多因素，液氨贮罐的材料必须具备抗-33℃低温冷脆性能，其设计过去大多是引进的。

The treatment of cold brittleness of resin to pulverize PVC is an efficacious method of obtaining ultrafine powder.

对PVC树脂进行低温冷脆处理，可以有效地实现PVC树脂的超细粉碎。

Chemical interaction between grain boundary chemistry and cold brittleness temperature.

建立了晶界化学和冷脆性温度之间的关系。

Under the high-speed work condition, the brittleness of epoxy adhesive coating leads to its bad slurry erosion performance.

但由于环氧树脂胶粘层脆性大，在较高速度的浆体冲蚀工况下，其抗浆体冲蚀磨损性能并不理想。

Because brittleness behavior of concrete is influenced by size of specimen, brittleness index must not including size effect. Most existing brittleness index is not exact for its including parameters vary with size.

由于试件的尺寸显著影响混凝土的脆性行为，脆性指标必须不包含尺寸因素，即不随试件尺寸发生改变，现有的绝大多数脆性指标由于所含参数具有尺寸效应而不确切；

According to the discuss of brittleness and brittleness index for concrete, as a true brittle material from microstructure point, magnitude of brittleness of concrete is relate to the dimension of plastic zone.

对混凝土脆性及脆性指标分析的结果表明，混凝土作为微观真脆性的材料，其脆性大小最终应归结为塑性区尺寸的大小；

And it is found that the model can duplicate the transference of deformation mode from the strain softening under the low confining pressures to the strain hardening under the high confining pressures; and the brittleness index gradually reduces when the confining pressure is increased.

模拟结果表明：这一模型可以模拟低围压下的应变软化到高围压下的应变硬化现象，并且脆性指数随着围压的增大而逐渐减小。

Numerical examples show that high brittleness index can improve the bearing capacity stability of the structure and the existence of crack set up in advance will increase the ductility of the structure, but it may result in the reduction of ultimate bearing capacity.

数值计算表明：增加脆性指数可以提高结构的承载稳定性；初始预制缝可以增加结构延性但会降低极限承载力。

In the paper a brittleness index B is proposed and used to describe the brittleness variety of geomaterials under loading or unloading conditions.

建议了一个可以描述材料脆性变化的脆性指数B，并验证了B指标能较好地描述岩土材料在加卸荷时的脆性变化。

Experimental results show that brittleness index values of rubberized concrete whose coarse aggregate replaced by rubber powder or rubber block were lower than that of normal concrete, which meant that rubberized concrete had better ductility performance.

试验数据表明，与普通混凝土相比，分别用橡胶粉或者橡胶块代替粗骨料的橡胶混凝土的脆性指数有不同幅度的降低，材料的延性有所改善。

Upon loading, unloading, and reloading on prepared cylindrical specimens, the hysteresis loops were drawn and brittleness index values were obtained.

对橡胶混凝土圆柱体进行循环加载，得到它们的滞回曲线，从而求得橡胶混凝土的脆性指数。

It's two o'clock British summer time.

英国夏时制两点钟。

The tidal predictions are expressed in Greenwich Mean Time. Add one hour for British Summer Time

潮汐预报用的是格林尼治标准时间。英国夏令时要在标准时基础上加一小时。

Expressions of alarm over the delinquency of the younger generation are nothing new in Britain.

对年轻一代的不良行为提出警告，在英国已不是新鲜事。

Instead, he hopes to associate the Morgan brand with "what might be a new Britain, almost like the Olympics Britain, more multicultural, a bit fresher, younger."

他希望让摩根品牌与“可能的新英国”联系在一起，这个新英国“就像是奥运英国，文化更多元，更清新、年轻一点。”

Instead, he hopes to associate the Morgan brand with what might be a new Britain, almost like the Olympics Britain, more multicultural, a bit fresher, younger.

他希望让摩根品牌与可能的新英国联系在一起，这个新英国就像是奥运英国，文化更多元，更清新、年轻一点。

Old-style manufacturing, which critics complained was creating an industrial wasteland, was run down in the quest for a competitive new Britain.

旧式制造业饱受诟病，规模逐渐缩减。人们追求建造一个具有竞争力的新英国。