查询词典 mechanical damage

The damage and failure modes of brittle materials under tension and compression are different. The self-similar growth of open microcracks under tension, the frictional sliding, mode-n self-similar growth and kinking of closed microcracks under compression and their influences on the mechanical properties of materials are studied in detail.

在拉伸和压缩情况下微裂纹损伤机制和材料破坏模式都不相同，本文对张开微裂纹的自相似扩展和闭合微裂纹的摩擦滑移、自相似扩展、弯折扩展进行了详细的研究，分别给出了它们对材料的宏观力学性质的影响。

Plastic surgical treatment is most commonly used to repair tissue damage from burning (see the article on burns and scalds), after mechanical injury, cancer or mutilating surgery.

整形外科治疗是最常用的修复组织损伤，从燃烧，后机械性损伤，癌症或损毁手术。

Air wrench operation speeds up cycle time on high gear ratio bevel gears however, the mechanical advantage available from bevel gearing enables the operator to damage the valve.

气动扳手操作加快了高齿轮传动比伞齿轮装置的循环速度，但是，其伞齿轮的机械增益使得操作者可能对阀门造成破坏。

Aiming at the practical instance,the bridge pavement and binding course are analyzed from the mechanical point of view,and the causes of the damage in the bridge pavement and binding course are investigated, then the corresponding prevention measures are brought forward.

针对实际情况，文章分别对桥面铺装层和粘结层进行力学分析，探明桥面铺装层和粘结层破坏的原因，由此提出相应的预防破坏措施，为实际工程提供了理论依据。

The inclusion cell is the bridge of macro and micro mechanical-electrical responses, but also provides a direct relationship between meso/micro grain characteristic parameters and between globe macro performance, which could become a great help for the study on damage, fatigue and fracture mechanism of ferro-electrics.

通过采用基于Hill理论的扩展的自洽计算方法，将其从一般多晶材料、复合材料的纯力学性能描述，扩展到具有力电耦合的复杂情况，建立其整体迭代和局部迭代的计算方法，得到铁电多晶材料的非线性力电耦合关系的描述。

In order to offer experimental mechanical parameters of correlative material for studying damage-limit-esign of the aircraft engine disk, the tensile tests of two limited width specimens with center-ole were performed.

为给航空发动机轮盘的损伤容限设计研究提供相关材料的力学实验参数，做了两个有限宽中心带孔试件的拉伸试验。

Mechanical ascenders can be handy for ascending fixed lines on big peaks, but are not a suitable alternative to prusiks as shown here because their sharp teeth could damage a rope during a big fall.

机械上升器用于手持上升修有路绳的陡壁，但不适合代替这里所示的普鲁士结。因为上升器锋利的尖齿在坠落的时候会损坏绳子。

Home position shear tests of slope rock, point loading tests and indoor AMD simulation action tests in XingQiao concave slope had show shearing strength and coherence between body layers of quartz sandstone decrease by 13.2%~21.3% after attacked by AMD, the angle of internal friction between layers is decreased by 5.0%~7.5%, in general, AMD affects the rocks mechanical property at range of 60~100m interior the perpendicular slop. Data analysis shows: 1 The actions to slope are major focused on zone of weakness, shearing strength of slope foot and AMD centre are reduced by 52% and 64.7% separately. 2 The explosion stress wave of long distance field has obviously increasing influence to disturbance amplitude value of slope with increasing of the slope height and distance, the response of the top of slope and fault region are obvious as well as damage effect; the foot of slope is with smallest disturbance amplitude value, the disturbance amplitude value of the step close to free face is obviously bigger than the interior of slope. 3 With the coupling effect of the AMD and explosion loading, the stress distribution inside of slope mainly presents characters of explosion stress field; the area affected by AMD becomes a weak area of shearing stress.

新桥深凹露天矿边坡岩体的原位剪切试验、点载荷试验、室内模拟AMD作用试验表明：AMD蚀化后的石英砂岩，岩体层面间的抗剪强度和粘聚力减小的幅值约为13.2%~21.3%；层面间内摩擦角减小幅值在5.0%~7.5%之间；AMD一般影响垂直边坡体内部在60~100m范围内的岩体力学性质数值分析表明：AMD对边坡体的作用主要集中在弱化区域内，边坡体的底脚和AMD作用中心区域的剪切应力减少了52.0%和64.7%；(2)随着边坡体高度和距离的增加，远场爆炸应力波对边坡扰动幅值的增加趋势明显，边坡顶部和断层部位的响应突出，损伤效应明显；边坡底脚扰动幅值最小，临空面附近台阶的扰动幅值明显大于边坡体内部；(3)AMD与爆破荷载耦合作用后，边坡体内部的应力分布主要呈现出爆炸应力场的特征，AMD影响区域形成了一个剪切应力弱区。

Possible cause is that top roller bearing failure "" flufenoxuron, cots from being subjected to excessive friction, or other mechanical reasons, such as inking rollers rupture Peel, with water in chrome-plated iron roller surface is "" Burr "" Peel, and so on, may cause abnormal COTS bear "" friction cause unexpected damage cot.

不定的来因是胶辊轴承生效&卡活&，胶辊秉承超度磨擦而毁坏，或是其它板滞上的来因，如串不朱软辊分裂起皮，带火镀铬铁辊暗不天有&毛刺&，&起皮&等，城市使胶辊秉承&否变态&磨擦造不败胶辊的否预期毁坏。

It is doubtless that the research on damage behavior and ductile fracture of weldments with mechanical heterogeneity is practically significant for the assessment of the integrity of welded structures.

研究焊接接头这种力学性能不均匀体的损伤行为及韧性断裂，对于焊接结构的安全性评定，具有重要的理论与工程实际意义。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷