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Peachwood Series Product features: red, gray section many scars, skin cracking, color for color, texture clear wood

桃木系列产品的特点：红、灰色节疤多、皮裂、颜色为原色、木质纹理清晰

The application markets of three kinds of isoolefines(isoprene, cyclopentadiene ,piperylene) from the cracking C5 fractions and their downstream derivatives were reviewed.

着重评述了裂解C5馏分资源中3种异构烯烃(异戊二烯、环戊二烯和间戊二烯)及其下游衍生物的应用市场，并剖析了我国裂解C5资源的利用现状及应用前景。

Stress Corrosion Cracking of polythionic acids of 304 SS were investigated by SSRT,SEM and metallographic analysis.

采用慢应变速率拉伸试验、扫描电镜断口分析以及金相显微组织分析等方法对304不锈钢连多硫酸应力腐蚀开裂行为进行了研究。

With increasing number of hot-wall hydroprocessing reactors and extension of service time, the occurrence of polythionic acid corrosion, hydrogen induced spalling of weld overlay, temper embrittlement of base metal, hydrogen embrittlement and surface cracking etc.

随着国产热壁加氢反应器的数量不断增加和服役时间的延长，连多硫酸腐蚀、堆焊层氢致剥离、母材回火脆化、氢脆、表面开裂等时效损伤出现的情况越来越多。

The observation of the metallographic structure of the cracks and analysis of the corrosion product determines that culprit of the cracking is polythionic acid stress corrosion.

中国石化股份有限公司天津分公司加氢精制高压分离器接管使用8个月后相继发生开裂，经裂纹金相组织形态观察和腐蚀产物成分分析，确定开裂原因系连多硫酸应力腐蚀引起。

Passivation process also has some drawbacks, including hard buck coke catalyst bed treatment、polythionic acid stress corrosion cracking prevent for sensitively materials, meanwhile passivation process must be coordination between skillful local workers with knowledgeable company.

钝化法也有一些潜在的缺点必须注意，同时也是需要厂商负责保证，主要包括大块结焦废触媒的处理、钝化剂化学成分是否会对设备材质造成潜在伤害的确认及设备因敏化而产生聚硫酸应力腐蚀的预防等。

The fracture reasons of high strength PC steel wire are analyzed, it's considered that center segregation, central cavitation, poriness and inclusion are the metallurgical reasons which lead to the facture of PC steel wire and in the rolling process, differential coping quality, microcrack caused by surface defect, abnormal microstructure caused by burnt and improper cooling velocity, the ears on the head of the wire, overlapping of the wire rod itself are the main reasons which lead to the facture of PC steel wire. At the same time, inappropriate pickling, differential phosphorization quality, the bad heat treatment quality, the generation of crack in the improper drawing and transverse crack caused by abnormal laying of the drawing die are also the reasons of the cracking of PC wire.

对高强度PC钢丝断裂原因进行了分析，认为连铸坯的中心偏析、中心缩孔、疏松和夹杂是导致PC钢丝断裂的冶金原因；轧制过程中，较差的修磨质量、表面缺陷导致的微裂纹，过烧以及不适当的冷却速度导致的非正常显微组织，盘条头部的耳子、盘条本身折叠是导致PC钢丝断裂的主要原因；同时，不恰当的酸洗、较差的磷化及热处理质量、不适当拉丝裂纹的产生、拉拔模具安放不正导致的横裂也是PC钢丝断裂的原因。

PH 5-7, rebuild naturally acidic protective film for the skin, prevent the skin from dryness, cracking, pruritic; formula which will not pollute bathtubs, you need not rinse bathtubs after washing up .

PH值5-7，可以重建皮肤天然微酸性保护膜，防止皮肤干燥、破裂、止痒；无泪配方，不污染浴缸，洗毕后无须冲洗，抹干即可，无滑腻感，滋润呵护全身

The main girder is designed to apply C60 pumpable high performance concrete with set retarding, high early strength and good volume stability to avoid cracking and meet the time requirement for the project.

主梁混凝土设计为C60泵送混凝土，采用8米挂篮悬浇工艺施工，混凝土技术要求很高：不仅坍落度损失要小、易于泵送，而且还要具有较长的缓凝时间，以保证一个梁段一次浇筑完成；有较高的早期强度，可在3至4天内进行预应力张拉，以缩短节段悬浇周期；有较好的体积稳定性，以避免梁体产生有害变形和开裂。

The practice of Bao-steel Group 1780mm steel rolling house shows seamless construction super long and super wide mass concrete box foundation with general concrete, which has no. deformation seam, no repour strip and no special material, can reach good result in cracking control by the sequential construction method, optimization design, material control, concrete curing without increasing the cost or extension.

结合宝钢集团不锈钢1780mm热轧工程超长、超宽的大体积混凝土箱型基础，在施工过程中不设变形缝、不留后浇带、混凝土内不掺特殊材料，采用分块跳仓浇筑施工工艺，结合配合比设计及优化、原材料控制、加强温控和养护等综合技术措施，可在不增加投资、不延长工期的条件下达到有效控制混凝土裂缝的目的。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。