弹回的

In this investigation, the compression behavior of COx argillite with two different grain size distributions, which were obtained by two different crush procedures, was studied by running 1D compression tests with several loading-unloading cycles.

通过开展一维压缩试验，研究2种不同粉碎工艺下获得的粗／细COx土样的压缩特性，结果表明：压缩曲线受粒度成分的影响非常明显，为获得同等压实度，细粒土所需的压实功能较粗粒土高，除此之外，细粒土的压缩指数也高于粗粒土，表现出较强的压缩性；随着土样压实密度的增加，粗／细土样的压缩曲线逐渐靠拢，粒度成分对压实功能影响逐渐减弱；土样卸荷时回弹指数随干密度的增加而增加，受粒度成分的影响不明显；高压实ρ(下标 d=2.0g/立方公分粗粒土样在7 MPa的轴向应力下饱和时，体积发生明显的塌陷现象，饱和后土样的压缩指数小于饱和前，而回弹指数则较饱和前高。

The results show that when the porosity of sample was higher, compressure rate was higher and resilience rate was lower, however resilient rate of sample with higher porosity were increased notably when pressure was increased, and it tended to accord with of sample with lower porosity. The friction coefficient was higher when porosity of paper-based friction material was higher, and the friction coefficient tended to reduce and stabilize when braking pressure was increased. The friction coefficient of sample with high porosity tended to reduce and stabilize in continuous braking cycles.

结果表明：在相同载荷下，随着孔隙率增大，材料的压缩率增加而回弹率降低，随着载荷增加，高孔隙率材料的回弹率先明显增大，而后趋于稳定；在相同比压和转速下，孔隙率越高，材料的摩擦系数越大，随着比压增加，孔隙率高的材料摩擦系数逐渐降低，且不同孔隙率材料的摩擦系数逐渐趋于一致；在连续循环制动时，高孔隙率材料的摩擦系数逐渐降低并趋于稳定。

Resilient modulus (E0) is an important parameter for pavement design. E0 value is generally obtained by conducting repeated load tri-axial tests in laboratory or bearing plate test; automated dynamic cone penetrometer in situ etc. because of the complexities encountered with the above tests.

中文摘要：土基回弹模量是路面设计的重要参数，实验室内测定土基回弹模量的方法为重复荷载三轴试验，野外测试的方法有承载板、动态锥等方法，上述方法操作起来都比较复杂。

Detecting rebound hammer's nonius position is the key of system, in order to keep the damp of nonius doesn't change.

回弹仪滑块位置的检测是本系统的关键，为了保证回弹仪滑块的阻尼不变，我们采用了完全非接触式的位移检测方法——线阵CCD成像获取游标的位置。

The comparison and correlation analysis between space geodetic results and predictions of postglacial rebound from the geophysical model ICE-4G shows that they have good agreement, their high correlation coefficients reach to 0.8～0.9, which indicates that the sp...

对用空间技术求解的实测值和用ICE_4G模型求解的估计值进行线性拟合和相关分析，两者的相关系数达到0 8～0 9，表明空间技术已经能够检测1～10mm a的冰后回弹运动；在方向上两者基本一致，在量级上，实测结果的绝对值比模型估计值系统性的偏大约2 0 %，表明当前冰期后的地壳回弹运动比地质时期要猛烈。

The result notes that dynamic triaxial test preferably simulate the actual stress state of grading macadam, and Uzan model which considers the shear performance of material can better reflect stress states of grading macadam. Regression coefficients of the model obviously present nonlinear characteristic with moisture changed, and to further influence dynamic resilient module.More the module is larger, more diminishing rate of maximum tensile stress on pavement Bottom is smaller. To enhance draining function and strength, the gradation should been rigid controlled, and which the content of less than 0.075mm is controlled between 5～7％ and spring-back is controlled between200~300MPa are appropriate.

结果表明，动三轴试验较好地模拟了级配碎石层的实际受力状态；Uzan模型考虑了材料的剪切性能，更能反映了级配碎石在隧道路面中应力状态；随含水量的变化，Uzan模型中回归系数变化呈明显的非线性特征，进而显著影响级配碎石的动态回弹模量的变化；级配碎石模量越大，路面层底的最大拉应力减小率越小；为了兼顾到级配碎石层的排水渗透功能和强度，应严格控制级配，特别是0.075mm以下的含量宜控制在5％～7％，级配碎石的回弹模量宜控制在200～300MPa之间。

By analyzing the forming process to engine bracket lower plate , and introduced the design of bending die,some measures to control spring back were extracted, the spring back problem of engine bracket lower plate was solved.

通过对发动机支架下板成形工艺的分析及其弯曲模结构的介绍，总结了几种控制回弹的措施，解决了发动机支架下板回弹难以解决的问题。

Assuming fluid is and viscid and slightly compressible, bubble collapse near rigid boundary and free surface is simulated, displaying characteristics such as formation, penetration and impact of reentrant jet as well as vortex ring and bubble rebound.

采用粘性、微可压流体模型，数值模拟了空泡在刚性边界和自由面附近溃灭及空泡溃灭后流动的发展，显示了空泡溃灭过程中的凹陷射流形成、空泡贯穿、射流冲击、涡环的形成和空泡回弹等流动特征，提出空泡回弹的另一种机制是凹陷射流冲击形成的旋涡。

In addition, this paper also makes preliminary study on spring back of HSS plate forming, because the spring back defect in automobile panel forming is the most complex problem.

另外，基于大型汽车覆盖件成形生产中最为令人困惑的回弹问题，本论文还对高强度钢板成形后的回弹现象进行了初步的探讨。

Develop thorough screening programmes to identify the "provincial project quality inspection teams working procedures"; Adjust steel detector, a few concrete Hin resilient devices, infrared ranger, concrete thickness detector, and more than 10 types of screening equipment, equipment; Equipped with cameras, video cameras and other evidentiary materials; requirements for the preparation of inspection units related materials "examined units and personnel original list" for the registration of imported works of the "Project Profile Form" for the inspection of the quality of acts related units "quality checklist" for the inspection of engineering information "Engineering Quality Inspection Records Form" for the inspection of the quality of engineering entities "Housing construction quality inspection log," and "decorative decoration quality inspection log","roads, bridges project quality inspection log," for inspection Liang, panels, pillars location and diameter steel "reinforcement location checklist" for the inspection of the concrete strength "concrete strength resilience testing Form" inspection works for the detection test units "laboratory quality checklist," and "laboratory examination of records in table","quality laboratory testing checklist" for the inspection of ready-mix concrete production enterprise "ready-mix concrete plant quality checklist","ready-mix concrete plant quality inspection records acts table","ready-mix concrete plant quality control inspection log","ready-mix concrete plant product quality inspection and Registration Form" for the examination of relevant personnel to mandatory standards of the "construction standards mandatory testing of the questionnaire table," for statistical findings of the "quality inspection Tables","Engineering Quality Inspection results summary","project quality inspection results tables","Punishment of project quality inspection list","quality check" and the "existence of major problems tables construction standards mandatory testing of the questionnaire tables."

制定周密的检查方案，确定《省工程质量检查组工作程序》；调校钢筋测定仪、混凝土数显回弹仪、红外线测距仪、混凝土板厚测定仪等十余种检查仪器、设备；配备照相机、摄像机等取证器材；编制用于要求受检单位提供有关材料的《受检单位及人员提供原件清单》，用于登记受检工程有关情况的《工程项目概况表》，用于检查相关单位质量行为的《工程质量检查表》，用于检查工程技术资料的《工程质量检查记录表》，用于检查工程实体质量的《房屋建筑工程质量检查记录表》、《装饰装修工程质量检查记录表》、《道路、桥梁工程质量检查记录表》，用于检查梁、板、柱钢筋位置和直径的《钢筋位置检查表》，用于检查混凝土强度的《混凝土强度回弹检测表》，用于检查工程检测试验单位的《试验室工作质量检查表》、《试验室检查记录表》、《试验室检测质量检查表》，用于检查预拌混凝土生产企业的《预拌混凝土厂工作质量检查表》、《预拌混凝土厂质量行为检查记录表》、《预拌混凝土厂质量管理检查记录表》、《预拌混凝土厂产品质量检查登记表》，用于考核相关人员掌握强制性标准情况的《工程建设标准强制性条文问卷考核情况表》，用于统计检查结果的《工程质量检查情况统计表》、《工程质量检查结果汇总表》、《工程质量检查结果统计表》、《工程质量检查处罚情况一览表》、《工程质量检查存在主要问题统计表》和《工程建设标准强制性条文问卷考核情况统计表》。

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。