韧

Lately, the study of toughening Al2O3 ceramics is an important field of ceramicsresearch.

所以 Al2O3陶瓷的韧化成为近年来陶瓷研究的重要课题之一。

In this review, the progress of the theories for rubber toughening polymer have been summarized.

传统的橡胶增韧聚合物机理研究在八十年代进一步发展、日臻完善。

C/SiC composites reinforced by carbon cloth and carbon fiber tows respectively were fabricated by the CSCVI method.

5用CSCVI法快速制备了碳布或纤维束增韧的SiC基复合材料。

With every procedure of production under strict control ,our products are reasonable in structure.They bring less wearing to the fiber of the knitted woofs and carry even fur.The needles are inflexible,wear-resisting and have long service lives.

本公司生产的无纺针，各道工序都经过严格的检测，具有合理的结构，对织物纤维损伤少，带毛量均匀，增强织物的密度、抗拉强度，针体刚韧、耐磨，使用寿命长等特点。

Below 300 300 to 1200 Ordinary Portland or Portland blastfurnace Ordinary Portland or Portland blastfurnace Sulphate resisting Supersulphated Sulphate resisting or Supersulphated High alumina Sulphate resisting or Supersulphated High alumina Sulphate resisting or Supersulphated with adequate protective coating High alumina Minimum cement content (kg m-3) Type of cement Maximum size of aggregate 37.5 240 290 240 270 290 290 330 330 330 330 19.0 280 330 280 310 330 330 370 340 370 370 9.5 330 380 330 360 380 380 420 410 420 420 0.55 0.50 0.55 0.50 0.50 0.45 0.45 0.40 0.45 0.35 Maximum water-cement ratio 0.5 to 1.0 1.0 to 2.0 1200 to 2500 2500 to 5000 Over 2.0 Over 5000 Wear

这些气 穴通常由具有格外高能量的水蒸气所填充，与混凝土表面的反复接触导致形成凹陷和孔洞，即气蚀。既然高质混凝土也不能抵抗这种劣化，因此最好的补救是通过制造平滑水流来消除气蚀。在所有必须的地方，关键的面上衬以高抗气蚀性的材料。通常，混凝土抗腐蚀和磨损的能力随强度增加而提高。采用硬韧的集料可改善混凝土的抗磨损性。

Qinghai Plateau Antelope Bee Industry limited company carries on repeatedly tests many times with Haibei State Agricultural center of Qinghai and Guangzhou food development Main Corporation ,through scientific means and modern production technology ,using the whole barley produced highland barley flour noodles ,Has crisply ,soft is strong ,slides ,feeling in the mouth good characteristic ,And broke through the former traditional processing craft ,enabled it to achieve could use the mechanized large scale production the level .

青海高原羚蜂业有限公司和海北藏族自治州农科所、广州食品发展总公司经多次反复研究试验，通过科学手段和现代生产工艺，采用全青稞面粉制作的青稞面条，具有爽、软、韧、滑、口感良好的特性，并突破了以往传统的加工工艺，使之达到了用机械化大规模生产的水平。

Phloem peeling machine and degumming technique for raw flax fibre in red soil zone of southern ChinaBased on the physical and mechanical characteristics differences between fresh tegument and stalk,bast fibre cell and nearby cell,a new type of combined peeling and washing machine was designed for the first time in the world.

南方红壤区冬季亚麻韧皮剥制机械及其脱胶技术利用亚麻韧皮部与木质部、韧皮纤维细胞与其周边细胞间机械物理性能的差异，研制出国内外首台家用型反拉式亚麻剥麻洗麻联合机。

Arena Preparation reduces the cost of spells and abilities by 100%, allowing you to buff you and your party with everything from Battle Shout to Fort.

这个增益魔法减少法术和技能100％消耗，以便你对自己和队友使用所有增益魔法如战斗吼叫或韧。

Tents contain with high pressure bed plank and soft pad. It is easy to take off the bedspread for laundering and practical for use.

耐压床板加软垫，床外罩为可拆下清洗的强韧棉布，外表美观又舒服。

The results show that the CNTs are dispersed effectively by bell jar immersing precast block casting. The maximal tensile strength and the elongation of the AZ31/CNTs composites are enhanced by 41.3% and 119.4%, respectively, and the elastic modulus and micro-hardness are also raised by 67.8% and 66.9%, respectively, when compared with those of the as-cast AZ31 Mg alloys. The CNTs can greatly refine the grains of the composites, playing a good role in reinforcing the matrixes of AZ31 Mg alloy. The fracture sections of the composites mainly consist of dimples and prisms, which demonstrates quasicleavage fracture modes.

结果表明：钟罩压块法可以有效地将碳纳米管分散到镁合金熔体中；CNTs对AZ31镁合金的力学性能有较强的增强效果，与本研究中的铸造AZ31合金相比，AZ31/CNTs复合材料的最大抗拉强度和伸长率分别提高41.3%和119.4%，弹性模量和显微硬度分别提高67.8%和66.9%；CNTs对AZ31镁合金基体晶粒的细化作用显著，与镁基体界面结合较好；复合材料试样断口形貌由韧窝和撕裂棱组成，呈现准解理断裂特征。

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。