查询词典 Pressure

The industrialization process paraments of strawberry by vacuum freeze drying was tested at platform of JDG-230 vacuum freeze drying production line that have drying area :250 m~2,and aims at improving quality and econemic benefit of strawberry by vacuum freeze drying ,result demonstmted:①optimization industrialization process paraments:loading capacity:10.5 kg/m~2,deepfreeze temperature:-30℃,deepfreeze time:2.5 h,pressure of drying room while vacuum sublimation drying:110～130 Pa. pressure of drying room wh...

以干燥面积为250m2的JDG-230型真空冷冻干燥生产线为实验平台，以提高冻干草莓产品质量和经济效益为目标，对冻干草莓生产的工艺参数进行了工业化生产试验，结果表明：1工业化生产适宜工艺参数为：装盘量10.5kg/m2、速冻温度-30℃、速冻时间2.5h、升华干燥时干燥仓压力110～130Pa、干燥解析时干燥仓压力30～50Pa、解析时的物料温度45～50℃；2获得可应用于大工业化生产控制的草莓冻干过程曲线。

Through measuring density inside and in the position with defect, it was discovered that density of defect in timber has corresponding relation to the pressure signal extracted by probe. Mechanism of the mechanical pressure deterred to measure defect in timber was set up.

压阻式木材内部缺陷类无损检测技术要解决的技术难点是木材密度特征的提取方式，以及对信号的分析消噪和判断等技术手段，分为如下几个方面进行研究。

Seismic formation velocity is one of important parameters for formation pressure prediction ,its precision affect the accuracy of the pressure prediction defectively.

由于地震层速度是地层压力预测的重要参数，其精度直接影响着压力预测的精度，利用测井约束下的波阻抗反演方法将测井、地震和地质解释成果结合获取较高精度的地震层速度，达到提高地层压力预测精度的目的。

Seismic formation velocity is one of important parameters for formation pressure prediction,its precision affect the accuracy of the pressure prediction defectively.

在钻井工程方面，地层孔隙压力是合理设计套管程序的基础参数，是合理选择钻井液密度、实现高效近平衡或欠平衡压力钻井的关键和依据[1-6]。

Moreover the influence of consolidation pressure on the coefficient of secondary consolidation, the effect of load increment ratio on secondary deformation and the pore water pressure at the latter stage of consolidation are investigated.

基于对这些试验资料的分析，提出了一种新的主、次固结变形划分法，同时还探讨了固结应力和应力比对次固结系数的影响、固结后期的孔隙水压力和荷载增量比对次固结变形比例的影响。

Then,the arrangement method for pressure monitoring points was proposed according to the approximation degree of nodes'pressure changes.

最后，根据各节点压力变化的近似程度和特征，提出供水管网压力监测点的布置方案。

To accelerate the widespread of Synchronous Chip Seal and improve the operation quality of Synchronous Chipsealer, key techniques which influence the operation quality is studied detailedly, including the control of distributing quality, the dynamics characteristics of hydraulic system and the spray characteristics of asphalt nozzle of Synchronous Chipsealer.1 The factors which influence Synchronous Chip Seal quality are studied. Fiducial probability of simultaneous distribution density is advised to be used in evaluating the distribution bias and standard deviation of asphalt and aggregates simultaneously, which is more advanced than the single index evaluation method used before.2 The volume efficiency formula of asphalt pump is revised after analyzing the data of volume efficiency with mathematical statistics, which is helpful to match the asphalt spray system and control the flow out of asphalt pump accurately. With equation deduction and experiment, dynamic of hydraulic system used in Synchronous Chipsealer is studied, which lay the theory foundation on improving the stability and efficiency from design and controlling.4 Simulation on hydraulic system used in Synchronous Chipsealer is done with AMESim; the results indicate that multi-circle parallel connected hydraulic system with constant pressure power is better than that with load-sensing pressure power at present, because the latter will oscillate when the multi circles work at the same time. This conclusion has been proved during the debug of Synchronous Chipsealer.5 Asphalt nozzle characteristics, such as flat jet shape, flow distribution, are studied with experiment, the results indicate that cross quality of asphalt distributing is not increased linearly follow the increase of fan overlap level, the best point usually exists between two whole overlap level, asphalt distributing quality is better than±4% at the 2.5 overlap level, meets the superior specified in standard; The distribution quality of Synchronous Chipsealer can be increased by spray asphalt of different flow rang with nozzle of different diameter

为了加快同步碎石封层技术的推广，提高同步碎石封层设备的作业质量，本文对同步碎石封层设备作业质量的影响因素与控制方法、液压系统的动力学特性和沥青喷嘴的喷洒特性等关键技术进行了深入细致的研究：1研究了影响同步碎石封层作业质量的因素，提出了采用联合密度分布置信概率对同步碎石封层中沥青洒布量和碎石撒布量的系统偏差和标准差指标进行综合评价的方法，克服了传统评价方法只能对单一指标进行评价的缺陷；2采用数理统计的方法，研究了沥青泵的容积效率特性，修正了沥青泵容积效率公式，为沥青喷洒系统的匹配和沥青泵出口流量的精确控制提供了依据；采用数理方程推导与试验相结合的方法，研究了同步碎石封层设备液压系统的动力学特性，为从设计和控制的角度提高同步碎石封层设备液压系统的稳定性和效率奠定了理论基础；3运用AMESim软件对采用负载敏感控制和恒压控制的两种同步碎石封层设备液压系统进行仿真，结果表明：负载敏感控制的并联液压系统在多回路同时工作时，由于液压泵排量控制参考压力不稳定，容易引发液压系统振荡，恒压控制的并联液压系统是目前技术条件下比较理想的同步碎石封层设备工作装置驱动方案；该结论亦通过同步碎石封层设备装机试验得到了验证。4采用试验的方法对沥青喷嘴的喷洒特性进行了研究，结果表明：沥青洒布的横向精度并不是随着喷洒扇面重叠度的增加线性增加，其最高点通常出现在二个重叠度之间的"半重叠位置"，"2.5重叠"洒布时，沥青的横向洒布精度≤±4%，可以达到国家相关标准中的优级标准；同步碎石封层设备还可以根据不同洒布量情况下的流量需求，采用不同通径的喷嘴进行喷洒，提高沥青洒布精度。

The pressure reduction principles with expander and with throttle regulator are respectively discussed, and their exergy depreciatory equations that can be use to calculate the power in pressure reducing processes are respectively deduced.

第二章对高压气动容积减压的新概念进行了定义；利用热力学的能分析法和火用分析法，推导出了对应节流减压和容积减压的能量特性方程和火用损失表达式，为减压过程中能量计算提供了有效工具；计算表明高压气动采用容积减压方式比节流减压方式有明显的节能效果。

DEPRESSURIZATION VALVE, A valve in the hydraulic system for decreasing hydraulic reservoir air pressure to ambient pressure.

减压阀，在液压系统中，将液压油箱空气压力减至与周围环境压力相同的活门。

objectiveto discuss the effect of the self-made negative pressure suction device in preoperative preparation of wound repair.methods27 patients who suffered soft tissue defect received the treatment of negative pressure suction device and underwent debridement during the time of dressing change, after 7 to 30 days （average 15.6 days） therapy, these wounds were repaired with skin grafts or flaps.resultsall of these patients' wounds became cleaner and smaller than before, and granulation tissue were fresh, the dermatoplasty or skin flap transplantation operations were successful.

目的：探讨自制简易负压吸引装置在创面修复术前期准备中的治疗作用。方法：对27例有皮肤软组织缺损的患者采用自制的简易负压吸引装置治疗，并在每次更换负压装置时进行清创。经过7～30日，平均15.6日的治疗后，在创面上行二期游离植皮或皮瓣转移修复术。结果：27例患者经过治疗后创面清洁，面积较前缩小，肉芽生长新鲜，游离植皮或皮瓣转移修复均一次性获得成功。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。