查询词典 jet

The main progressing of this study is followed:The key process parameters of manufacturing sintered NdFeB magnets, such as strip casting, hydrogen decrepitation process, jet-milling process, orientation and pressing process, sintering and annealing process are investigated.

主要有以下进展：研究了烧结NdFeB永磁材料制备过程中一些关键的工艺步骤，如速凝铸带工艺、氢爆工艺、气流磨制粉工艺、取向成型工艺、烧结与回火热处理工艺等对磁体的磁性能、力学性能和显微组织的影响。

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。

Simulation results suggest that different det onation wave patterns have great influence on jet performance.

结果表明：不同的爆轰波形对聚能射流有着重要的影响。

To get rid of the usual assumption that temperature field in diamond water of substrate is uniform or linear so as to make the simulation results closer to the actual conditions under which the diamond water can be fabricared, the plasma jet from a plasma torch controlled by DC electromagnetic field was introduced in simulation.

为了使模拟更接近于金刚石膜的真实制备环境，本文取消了以往对金刚石膜或基体内的温度场常作的均匀或线性的人为假设，而采用对从磁控直流等离子体炬内喷射出的射流仿真计算结果。

When the water discharge is large, the curvature and the jet-trajectory angle should not be too big in order to assure the diffusibility.

在挑坎末端高程相同的条件下，下泄流量较小时，曲率和挑角越大，水舌单宽流量的横向分布越均匀，水垫塘底板最大时均压力越小；大泄流量时，曲率和挑角不宜过大，以保证水舌扩散效果。

Someone told me that Jet Li was once a student, but I 3 digress .

有人告诉我李连杰曾是这里的学生——这是题外话了。

XT-238PS is artificial marble with the new bezene diol jet gel coat resin.

XT-238PS是人造大理石用间苯新戊二醇型喷射胶衣树脂。

Leaves behind only then the jet black room, the flurried palpitation, is recounting heart's core pain that lonely missing, that gloomy disconsolateness, but also has that happy illusion, alone talks during sleep!!!

假如有一天，她不在为你生气……留下的只有漆黑的房间，慌乱的心跳，述说着心灵深处的痛楚那寂寞的思念，那暗淡的惆怅，还有那幸福的幻觉，独自呓语！！！

In the study of flow oscillation and discrete frequency noise of impinging jet, it is found that there is a critical pressure ratio for a given nozzle and a nozzle-to-plate distance.

发现对于给定的喷嘴和冲击距离，存在一个压比临界点，当压比高于此临界点值时，流场振荡和离散频率噪声被显著抑制乃至消失。

Note also that so far our jet engine is still working discretely, i.e. it is still operating on the SSBB cycle as used in a car engine.

还要注意的是，迄今，我们仍是喷气发动机工作不连续，也就是说，它仍然在黑带周期运行在汽车发动机使用。

The small blue capacitor has very high chances to go fully shorted compare to electrolytic capacitor which is very rare.

小蓝电容器具有很高的机会去充分地缩短了比较电解电容器，这是非常罕见的。

In the Italian campaigns of 1513 and 1515, when the Swiss won the victories of Novara and Marignan, he acted as army chaplain.

在意大利的运动， 1513年和1515年，当瑞士赢得了胜利，诺瓦拉和marignan ，他担任军队的牧师。