断裂的

The accumulated elastic strain energy and deformation induced by the fault movement exceeds the strength of rock, and in sequence causes fault rupture and strata failure, and then earthquake occurs.

断裂的活动容易导致断裂及其附近岩层中弹性应变能的积累，当应变能超出岩体的强度时，就会引起断裂或岩层的破裂而发生地震。

Starting from the study on 8 typical, open and sealed faults in Yanqi Basin, by using integral seismic-geologic methods, such as fault stress analytical method and fault smearing method, it is found out that the critical values of the fault as it is vertically and horizontally opened and sealed are 0.3333 MPa and 5 MPa respectively. It is pointed Out that because times and vertical and strike positions of the fault are different, the fault seal properties are different.

从焉耆盆地所开展的8条比较典型的开启或者封堵的断裂的研究入手，利用地震地质综合研究的方法―"断面应力分析法"和"断面物质涂抹法"，发现该盆地内的断裂在横向上和垂向上开启或者封堵时的"临界值"分别为0.3333和5 MPa，指出断裂的封堵性因其形成的时间、垂向上所在的部位和走向上所在的位置等方面的不同而不同。

Aiming at the fracture in operation of damageable pump shaft used on locomotive, macroscopic and microscopic analysis of the pattern of fractured cross section in pump shaft is conducted and it is recognized that the fracture is typically caused by combined action of bending and torsion fatigue.

针对机车用水泵轴在使用中容易发生断裂的问题，对水泵轴断口的宏观和细观形貌进行了分析，认为断口为典型的弯扭复合疲劳断口。通过检测水泵轴上装配的齿轮，发现由于齿轮的加工误差过大，在轴的退刀槽根部造成了较大的附加拉应力，最终导致轴的断裂。因此及时消除齿轮的加工误差，同时提高安装精度，是防止此类断裂发生的关键

These four aspects are: the foreworn and frature of the wheel rim , tread foreworn bedded d ecrustation, regional crush and subside and early brittle fracture of the wheel rim .

为了有效地提高行走车轮的工作寿命，使其接近或达到设计周期，笔者从车轮损坏的形式、部位即轮缘磨损断裂、踏面磨损层状脱皮和局部压碎凹陷、轮缘早期脆性断裂四个方面进行了分析，找出了之所以产生磨损和断裂的原因，并提出了延长车轮工作寿命的对策。

Because of periodically faulting hydrocarbon pumping migration along fault zone is periodic, intermittent and pulsant, and hydrocarbon migration and accumulation often locates the newest strata.

断裂周期性破裂活动的特征决定了油气沿断裂的垂向泵吸运移呈周期性、间歇性和脉动的特点，同时也决定了油气易于在断裂错开的最新层位聚集成藏。

Visual and microcosmic analyses on the fracture of absorber spline outer canister for oil drilling stem(spline outer canister for short) were performed.

为查明某油田断裂的石油钻柱减震器花键体外筒的断裂原因，对其断口进行了宏观和微观分析，对断裂的花键体外筒材质进行了分析，对钻柱减震器的受力状态和主要结构进行了分析。

There are two causes leading fractures of the endodontic instruments. Firstly as the value of the toque inc1ases beyond the limited toque, the instrument will twist with no increase in toque and will fracture soon. The value of limited toque is proportional to 3 squares of the file radius.

根管器械断裂的原因主要有2个：一是扭转超过极限扭距，器械顺着扭转的方向发生塑性扭转直至断裂，圆杆的极限扭距与其半径的3次方成正比；二是器械在循环载荷下发生疲劳损伤，最后突然断裂。

By studying the deformation and evolutionary sequences around the Panshan granitic pluton, east-central Yanshan orogenic belt, and 40 Ar/ 39 Ar thermochronological test and analysis,we present the structural evolutionary process of the overlying strata before pluton intruded as well as it was intruding. The sequences of regional deformation are as follows: before the intrusion of Panshan granitic pluton, the N-S trend contraction in the east-central Yanshan orogenic belt took place, which resulted in the regional EW-trending Malanyu multi-fold and Jixian thrust fault; then Panshan granitic pluton intruded into the south limb of the Malanyu multi-fold and cut-through the Jixian thrust fault; later, the reactivity of the Jixian thrust fault cut off the synclines around thePans han granitic pluton.

通过对燕山东段盘山花岗岩岩体周缘构造变形特征、演化过程的研究，并结合40Ar/39Ar 热年代学测试和分析，提出盘山岩体侵位前、侵位时其上覆岩层的构造演化过程：三叠纪末(210-200 Ma)盘山岩体侵位前，燕山中东段受南北向挤压作用形成了近东西向的马兰峪复背斜和蓟县逆冲断裂；盘山岩体侵位于先期形成的马兰峪复背斜南翼，并侵蚀了蓟县断裂；蓟县断裂的后期再次活动截切了盘山岩体的周缘向斜。

The main activities and characteristics of the 5 faults in Yishu zone are analyzed in the paper. We rezoned the Yishu zone, and summed up the differences in their activities between different faults or different parts of one fault and their features.

本文在前人研究工作基础上，较为深入地分析了沂沭带5条断裂的主要活动规律及其特点，对沂沭带进行了新的分段，并归纳了沂沭带不同断裂之间、同一断裂不同段落之间的活动差异及其差异的基本特徵。

On one hand,the plastic deformation of PA6 is restricted and restrained by glass fiber which can decrease the impact toughness of SGF-PA6;On the other hand,the debonding of fiber/matrix interface and the pulling-out of fiber can consume partial energy,so the impact toughness of SGF-PA6 can be improved.

另一方面，冲击断裂过程中的纤维/基体界面破坏和纤维拔出可吸收一部分能量(在断口分析中很少看到纤维的断裂，所以未考虑纤维断裂的影响)，这有增加复合材料冲击韧性的影响。

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。