有裂纹的

It is allowable to have defects not affecting usage of the products such as slight rolled-in metal, roll mark, scratch and

带材表面应洁净平整。不允许有腐蚀、裂纹和黑条等缺陷。允许有轻微的金属及非金属压入、辊痕、擦划伤、松树枝状等不影响使用的缺陷存在。

One is the effect of LT crack of wood on wood transverse bending property. Birch, ash tree, walnut are studied, and it appears that under the bending loads the bending strength of the beam with crack will decrease, but not obviously .

第一部分研究了木材LT型裂纹对木材横纹理弯曲性能的影响，在对桦木、水曲柳、核桃楸的研究中，发现含LT型裂纹的横梁在弯曲载荷的作用下，其弯曲性能会有一定程度的下降，但降幅并不明显。

Usage of the products such as slight rolled-in metal, roll mark, scratch, herring bone mark, residual oil stain after

板材表面应洁净，不允许有腐蚀、裂纹等缺陷。允许有轻微的金属及非金属压入、辊痕、擦划伤、松树枝状、退火油痕、矫直辊印等不影响使用的缺陷存在。

Affecting usage of the products such as slight rolled-in metal, roll mark, scratch, herring bone mark, residual oil stain

板材表面应洁净，不允许有腐蚀、裂纹等缺陷。允许有轻微的金属及非金属压入、辊痕、擦划伤、松树枝状、退火油痕、矫直辊印等不影响使用的缺陷存在。

Study on a Expert System for Analysis of Casting Defect;2. The effect of casting defect such as microporosity and the inclusions in the process of crack initiation,crack propagation and fracture was analyzed.

系统研究了L114A合金疲劳损伤特征，分析疏松、夹杂物等铸造缺陷在疲劳裂纹的形核、裂纹的扩展以及瞬断中所起的作用，表明铸造过程中形成的铸造缺陷数量、尺寸、位置对金属的疲劳性能都有不同程度的影响。

Degaussed confirmed resistance, the first removed to take one's time, it can carefully look at the two of the solder around the pin whether or not there are cracks, if any, may be whether it can be passed to try repairing troubleshooting.

确认消磁电阻后，先不忙拆下来，可仔细看一下它的两个引脚周围的焊锡是否有裂纹，如果有的话，可尝试一下是否能够通过补焊排除故障。

Basically, the cleaning method is to use cloth coated with a little water, and then gently wipe in the uppers and vamps attention on whether the stolen property is "硬伤", if there is cracking硬伤uppers, then skip there place injury, because if there are injuries in place to continue to rub the wound will become even more dirty, and even become larger cracks.

基本上的清洗方法就是用抹布沾上少许清水，然后轻轻的在鞋面擦拭，并注意鞋面上的赃物是否是&硬伤&，如果是鞋面有开裂的硬伤，则跳过有伤的地方，因为如果在有伤的地方继续擦会使伤口变得更脏，甚至裂纹变大。

The deforma-tion history and strain characteristic during deformation of material are describedby the flow line in which the deformation history and strain characteristic re-strain the crack initiation at stage II and the crack propagation at stage III.

材料的流变曲线描述了形变过程中的变形历史和应变特性，有明显的阶段性，其中第Ⅱ阶段的变形历史和应变特性制约着裂纹的启裂过程，第Ⅲ阶段的变形历史和应变特性制约着裂纹的扩展过程。

Therefore, the choice of single mode in the examination and the frequency-thick band of mode has been given a particular illumination separately in the paper, following a relative numerical simulation. And a multi-cyclical sine signal modulated by Hanning window is used to simulate the excitation wave, and then an inspected ring of nodes is established to receive the echo, finally how the length of the circumferential cracks, the width of the axial cracks and the degree of the thickness-reduce effect the result is explained through the analysis of the result, further more, the reflection factor in the defect has been calculated.

因此，本文也就单一检测模态的选择以及模态频厚积段的选择分别予以了阐述，并有针对性的进行了数值计算：应用Hanning窗调制的多周期正弦波模拟单音频激励信号，并设置监测质点环接收回波，通过分析说明了管道的周向裂纹、轴向裂纹以及点蚀缺陷对缺陷回波所产生的影响，并进一步计算了缺陷处的反射系数。

Results 1、 Generally, we can see the original blue and white, shiny, no cracks in the articular surface of the cartilage after the stress increases gradually yellow, surface roughness, cracks appear; when the pressure decreases, the yellowing, rough, the color of the fracture restore gradually and become shiny.2、the shiny smooth surface can be seen under a light microscope, formation, cell distribution, tidy, clear the level of cartilage at the articular surface stress increases, the surface roughness changes, defects, disordered cells, uneven dyeing ; when the articular surface of the pressure gradually decreased, the cartilage gradually repair and the surface of cells at the surface appear only disorder.3、immunohistochemical observation can be seen throughout the observation period, cartilage cells are type Ⅱ collagen expression and expression after 3 weeks gradually weakening, when the seventh week begin to strong gradually.4、 electron microscopy shows that when stress increases the articular surface, the cartilage cells became flat, the cytoplasm in the endoplasmic reticulum, Golgi apparatus decreased with collagen disorders; and when stress decreases the articular surface, cartilage cells gradually returned normal, cytoplasm in the endoplasmic reticulum, Golgi body gradually restore quantity; collagen fibers with a gradual rules.

结果：①大体观察可见到原本蓝白色、有光泽、无裂纹的软骨在关节面压力增大后，逐渐呈灰黄色，表面粗糙，出现裂隙；当压力逐渐减小后，变黄、粗糙、有裂隙的软骨颜色逐渐恢复，变得有光泽②光镜下可见表面光滑、平整，细胞分布均匀、整齐，层次清楚的软骨在关节面压力增大后，表面变粗糙、缺损，细胞排列紊乱、染色不均；当关节面压力逐渐减小后，软骨表面逐渐修复，细胞仅在表层排列紊乱③免疫组织化学观察可见整个观察期内软骨细胞胞浆内均有Ⅱ型胶原表达，术后3周内表达逐渐变弱，从第7周时开始逐渐变强。④电镜下可见当关节面压力增大后，软骨细胞逐渐变扁，胞质中内质网膜、高尔基体减少，胶原排列紊乱；当关节面压力减小，软骨细胞形态逐渐恢复正常，胞质中内质网膜、高尔基体数量逐渐恢复；胶原纤维排列逐渐有规则。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。