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A study was made of the mechanical properties of ordinary Portland cement modified asphalt emulsion concrete,including compressive strength and compressive modulus,flexural strength and flexural modulus.

研究了不同水泥用量对乳化沥青混凝土的抗压强度和抗压回弹模量、抗折强度和抗折回弹模量等力学参数的影响。

Also, on the flatness of the feed, the output location of the paper cords and compactness, pressure wheel and brush round of pressure and location, and so the details carefully adjusted.

另外,还给不对输纸台的裂缝量,输不入纸线带的场所和松紧量、压纸轮和毛刷轮的不张力及场所等梗概举行澈底不天调动。

The method using precise leveling instrument as settlement observation system of static load test in the soft sail is pro-posed herein, for the reasons that conventional combined base beam and dial gauger observation system is easily affected by load platform.

针对软土地区单桩静载试验中常用的基准梁百分表沉降量测系统易受压重平台影响的问题,提出将精密水准仪作为静载试验的沉降量测系统。

The results show that the concentration of displacement and stress in surrounding rock intensifies with the increase of excavation steps. The maximum compression and tension stress reach 54 MPa and 3.9 MPa, which are close to the peak strength of surrounding rock. When the tailings are backfilled, the magnitude of floor heaves reduces about by 5 mm, and the maximum compressive stress drops to 32 MPa. Distribution of both stress and displacement fields are improved and the stability of stopes can be ensured during the mining process.

研究结果表明:随着开挖逐步推进,围岩位移不断增大,应力集中现象明显,最大压应力达54 MPa,最大拉应力达3.9 MPa,接近围岩的极限强度;在尾砂回填后,底鼓量下降5 mm,最大压应力降至32 MPa,表明应力场和位移场均得到改善,能确保回采期间采场的稳定。

With the increasing of the bedrock thickness, pressurized pace was increased gradually, the roof caving and surface subsidence were gentled step by step. When the thickness of roof bedrock was larger than 60m, the bench subsidence was not occurred, and the value of surface subsidence was also small. The mining technology was proper and highly active, and the support programme was feasible. The roof was controlled effectively by the support system, and achieved safety mining.

随着基岩厚度的增加,顶板来压步距逐步增加,顶板垮落与地表下沉越来越缓和,基岩厚度大于60m时,顶板来压不再出现台阶下沉,地面下沉量较小;针对不同厚度基岩提出的采煤方法合理,高效,支护方案可行,能够有效控制顶板,实现安全生产。

In 2003, the company successfully developed HF1100 Automatic Hydraulic Fly Ash Brick Press and MD series Automatic Stacking Machine, solving the technical difficult problems of high proportion and high capacity in utilizing fly ash and other industrial solid waste in autoclaved brick production, which drew wide attentions and high praises from the experts in the industry.

年,公司成功研发HF1100型全自动液压粉煤灰砖压机及MD系列全自动码坯机,攻克了大掺量、高产量利用粉煤灰等工业固体废弃物生产蒸压砖的技术难题,引起业界专家的广泛关注及好评。

The study results showed that the porosity, pore size, pore distribution and crush strength can be adjusted by the alternation of addition and powder size of pore-forming agent, the variating of addition of binding admixture, sintering temperature, holding time, forming method.

研究发现,改变成孔剂的加入量、粒径大小,粘结剂的加入量,坯料颗粒大小、成型方式,烧成温度、保温时间等方法可以调节样品气孔率、孔直径、孔径分布、压碎强度。

The influences of forming parameters,such as specification of heat treatment,nominal reduction of blank radius,feed ratio and roller track,on multi-pass neck-spinning of aluminum exhausted pipe used in vehicle are researched,and sound exhausted pipe s are developed by selecting reasonable processing parameters and roller tracks.

以铝质汽车排气歧管为研究对象,探讨了热处理工艺规范、名义压下量、进给比、旋轮运动轨迹等对三维非轴对称偏心及倾斜件多道次缩径旋压成形工艺的影响,通过选择合理工艺参数及旋轮运动轨迹,研制出合格的汽车排气歧管样件。

The company also specializing in the production of supporting a variety of cold extrusion steel, cone thread connecting sets, rolling straight thread connecting sets, stripping rib straight thread connecting sets, torque wrench, the wrenches, cutting tools, thread gauge, smooth gauge , The teeth of regulations, such as ring-regulation.

公司还专业生产相配套的各种规格的冷挤压钢套、锥螺纹连接套、滚压直螺纹连接套、剥肋直螺纹连接套、力矩扳手、工作扳手、切削刀具、螺纹量规、光滑量规、牙型规、环型规等。

Some parameters, such as blast pressure of Air Supply System, suction pressure of Furnace Chamber, etc., directly influence the boiler combustion and heat transfer.

所涉及的参数如送风系统风压、炉膛负压、烟道负压、制粉系统出力及风压和给粉量等都直接关系到锅炉的燃烧和传热。

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但我们并不在乎沙场中的显露。

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啊!不用提了。提到肉,真是糟透了。

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Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。