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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。

"We lost a Mongolian deportee, we had a flat tyre on an aircraft, we had two drunks to deal with and some bags went missing."

"我们丢了一个被驱逐出境的蒙古人，有架飞机的一个轮胎漏了气，有两个酒鬼必须处理，还有些行李包不见了。"

In order to study the fatigue of pressure vessel commonly encountered problem in engineering with large destructibility , based on the theory of fracture mechanics , the pressure vessel existing original crack was equivalent to the problem of infinite flat with center crack .

为了分析工程中常见的破坏性极大的压力容器疲劳问题，基于断裂力学理论将存在初始裂纹的压力容器等效为无穷远处作用均匀拉应力的含中心裂纹无限大板问题，解出表面半椭圆裂纹和穿透裂纹的应力强度因子；利用断裂判据得到裂纹的临界断裂尺寸；采用Paris表达式对裂纹扩展速率进行描述，推导出初始裂纹在不同裂纹尺寸和形式下的裂纹疲劳扩展寿命。

A developable surface is one that can be made from a flat sheet without any in-plane strains.

可展曲面是一个可以由平板在不发生任何面内应变的条件下弯成的曲面。

A surface that can be unfolded or unrolled into a flat plane or sheet without stretching, tearing or shrinking is called a 'developable surface'.

一个可以在没有拉伸、撕裂或收缩的情况下展开为一个平面或平面区域的面，被称为可展面。

In another few hours the Devilfish would have a "flat can"-no battery juice left.

不消两三个钟点，"乌贼号"就会剩下个"空电池"，一点电也没有了。

Another 230 Units matching stitching machine, flat car 60 Units for New Units 6 machine, keyhole machine 8 Units, 15 Units Units inspection lighting, ironing Units 58 Units, 2 tons of coal boiler 2 Units, 0.8 tons from Taiwan Oil 1 Units, 100-type dryer 6 Units, 50 Units 1 dryer, 100-type industrial washing machine 4 sets, 150 dewaterer 2 Units, 250 hp generator sets 2 groups, one-piece hanging in a drying room drying, as well as other ancillary equipment, organizations of various raw materials for clothing deal with the fundamental guarantee.

另外配套缝合机230台，平车60台，订纽机6台，锁眼机8台，灯光检验台15台，整烫台58台，2吨煤锅炉2台，台湾产油炉0.8吨1台，100型烘干机6台，50型烘干机1台，100型工业洗衣机4台，150型脱水机2台，250马力发电机组2组，单件吊烘烘房一座以及其他配套设备，对各种原料组织的成衣处理有了根本的保证。

It is also an ephemeral art -- as soon as a woman's sari or a man's dhoti is taken off, the particular style in which it encircled the body is lost, and the garment reverts to its flat rectangular form.

这也是全剧的艺术--尽快女人的sari或一个人的dhoti是起飞，特殊的风格，在它被包围在身体失去与成衣重归平面直角形式。

The Chinese kongzhu has flat side like wheel whereas the diabolo consists of two bell-shapes.

再者，空竹的轮缘上有气孔，旋转起来能发出嗡嗡的声音，而迪亚波罗是没有声音的。

The same concept or object is represented by different lexis (dialectal synonyms, such as flat and apartment ).

同样的概念或对象是由不同的词汇（方言同义词，如平面和公寓）。

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。