查询词典 cracking

The result indicated that the stress cracking resistance properties of polymer alloy were greatly improved comparing to pure HDPE, and there was a strong relationship between spherulitic structure, mechanical properties and stress resistant properties.

结果表明，共混体系耐应力开裂性能比纯HDPE有很大提高，而且应力开裂性能与材料的强度和球晶形态密切相关，强度较大且球晶小而不规则者，其耐环境应力开裂性能较好。

Cracking patterns, streel bars's stress distribution and force-displacement curves at beams ends resulted from the experiments indicate that at location of plastic hinge area the main cracks developed sufficiently and the stress of steel bars was peak values, and no bonding failure of steel bars is found within core region of assemblies.

有限元分析所得裂缝分布、钢筋应力分布以及梁端力－位移曲线反映出，高强钢筋混凝土框架梁柱组合件在低周反复荷载作用下梁端塑性铰区裂缝开展充分，钢筋应力最大，核芯区内钢筋未发生粘结破坏。

The main contents are as follows. By the experiments of two joints under low-reversed cyclic loading, the paper analyzes the failure pattern, energy dissipation, ductility and cracking in the joint cores, evaluates the seismic performances and anti-crack behaviors of the joints, and deduces the anti-crack formula of the subassemblage and prestressed frame joint. Through the finite element analysis software Ansys , the paper analyzes the specimens nonlinearly, and the theoretical analysis results are well consistent with those of the experiment.

主要内容包括：通过两榀节点在低周反复荷载作用下的试验，分析其破坏形态、耗能能力、延性性能和节点核芯区裂缝开展情况，评估节点的抗震性能和抗裂能力，推导出预压装配式框架节点的抗裂验算公式；并运用Ansys对试验中的节点进行了非线性分析，计算结果与试验结果基本吻合。

Catalytic cracking ; gasoline stock ; hydrogen donor solvent ; hydrogen transfer ; tetralin

催化裂化；汽油料；供氢溶剂；氢转移；四氢化萘

Quinoline catalytic cracking was studied on a fixed-bed microactivity test unit by using toluene, cetane, and tetralin as solvent.

采用固定床微反活性实验装置，以甲苯、十六烷、四氢萘为溶剂，研究了碱性含氮化合物喹啉的催化裂化转化规律。

So the difficult sequence of cracking to remove the sulfur for different sulfur compounds is that thiophene, benzothiophene＞alkyl side-chains of thiophenic compounds＞mercaptan, sulfur ether.

总之，不同含硫化合物裂化脱硫的难度顺序为：噻吩、苯并噻吩＞烷基噻吩＞硫醇、硫醚。

This allows the crab to insert a large toothlike appendage on its right-hand claw into the opening, thus cracking the snail's shell.

这样就可以把它右爪那边象牙齿样的东西刺进蜗壳口从而弄碎蜗壳。

I have said this was the worst thing possible for me; for helpless as she looked in this situation, with the canvas cracking like cannon, and the blocks trundling and banging on the deck, she still continued to run away from me, not only with the speed of the current, but by the whole amount of her leeway, which was naturally great.

我刚才说对我来说糟糕透了是因为伊斯班袅拉号尽管看起来处于寸步难行的境地，船帆劈里啪啦地像放炮，滑车在甲板上滚来滚去，乒乓直响；但它不光是以潮流的速度继续往北移动，还加上了很大的风压，因此漂得极快，我怎么也赶不上他。

A computer method is presented in this paper for the bending analysis of unbonded prestressed concrete structures after cracking.

这种结构是一种内部超静定结构/它在混凝土未开裂时，其内力计算可以采用结构力学的方。

Lastly, in accordance with the actual situations of the prototype structure of mosque pagoda, based on the similar relation of model experiments, a model structure of mosque pagoda with a similar coefficient of 1/10 is designed and fabricated. Earthquake simulating shaking table tests are performed on the model structure of pagoda in the cases the AB type passive control system with SMA dampers is erected or unerected. The leading earthquake responses like the relative drift at the top of the main tower and the small tower, interstory drift ratio, acceleration, and cracking process of the pagodas body etc. are studied. The operational behaviors involving the deformation capacity and energy dissipation capacity is tested for passive control system with SMA dampers under the earthquake excitation, and the corresponding control mechanism and regularity is also analyzed. Furthermore, the performance changes and protection effectiveness is comprehensively evaluated while the model structure of pagoda is seismically protected or not.

最后，根据光塔原型结构的实际情况，以模型试验的相似关系为基础，设计并制作了一个相似系数S，为1/10的光塔模型结构，并先后进行了未安装和安装A、B型SMA阻尼器被动控制系统光塔模型结构的地震模拟振动台试验，研究了模型结构在3种不同工况下，主塔顶部和小塔顶部的相对位移、层间位移角和加速度以及塔体开裂等光塔结构的主要地震反应，测试了SMA阻尼器被动控制系统在地震激励下的变形能力和消能能力等工作性能，分析了相应的控制机理和控制规律，并从总体上评价了光塔模型结构抗震保护前后的性能变化和保护效果。

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。