查询词典 cracking still

The paper relying on project practice of the express highway from Taiyuan to Changzhi of Shanxi Province, according to demanding of "Technical Specifications for Construction of Highway Asphait Pavements ", combining with own region climate characteristic and concrete design, and construction request, it has carried out SBS modified studying on shell-90# asphalt, so drawing a conclusion: 1. Having studied the quantity of SBS modifier"s effect on the temperature sensibility, the high temperature stability, the low temperature resistance to cracking , elasticity and the durability of asphalt ,meanwhile, having studied the quantity of SBS modifier"s effect on the water stability, the high temperature stability , the low temperature resistance to cracking of asphalt mixture, having compared SBS modified bitumens various function. As a result ,when the amount of SBS added is 5%, every function is comparatively even.

本论文依托山西省太—长高速公路建设的工程实践，按照《沥青路面施工技术规范》的要求，结合本地区的气候特点和具体设计、施工要求，对壳牌90#沥青进行了SBS改性研究，得到如下结论：(1)研究了SBS改性剂用量对沥青的温度敏感性、高温稳定性、低温抗裂性、弹性及耐久性的影响，同时研究了改性剂用量对沥青混合料的高温稳定性、低温抗裂性和水稳定性的影响，比较了SBS改性沥青的各项性能，结果表明当SBS掺加量为5%时，各性能较为均衡。

From the microstruture observation, this dilatancy produced is clearly associated with a change from crystal plasticity plus minor cataclasis (formation of closed intragranular cracks) at high pressure (20MPa) to crystal plasticity plus significant cataclasis (involving axial cracking, intragranular cracking, crack opening and shearing) below 10MPa.

此时的微结构研究也发现：岩盐流变过程中膨胀的产生是由高围压下（20MPa左右）的晶体塑性加较少碎裂到低围压下（10MPa左右）的晶体塑性加主要的碎裂（包括纵向裂隙、晶内裂隙以及裂隙的张开与剪切）。

Because of the direct path coefficient reaches 0.796, the lignifications degree of epicarps plays an important role on fruit cracking. So it can be taken as a main selective trait for anti-cracking variety.

外果皮木质化程度对裂果的直接作用最大，直接通径系数达到0.796，可将其作为筛选抗裂品种的重要参考性状。

Taking one kind of specification boiler pipe as the object of study, the cracking parent metal, the cracking fragment and the primary goods were analyzed by vertical and horizontal directions.

以某种规格锅炉炉管为研究对象，在炉管爆裂处的母材、撕裂碎块以及供货原材料的纵横两个方向分别取样进行分析，探讨锅炉管爆裂处的金相变化对炉管失效的影响，并给出锅炉炉管爆裂破坏的金相学原因。

This research deals with the mechanical mechanism of expansion of steel slag sand mortar through the measurement of strength and expansion rate. The results indicate that the improvement of matrix strength could lower the expansion rate of steel slag sand mortar, extend the cracking age, reduce the degree of cracking but couldn't prevent the specimens made with steel slag from crack.

通过力学性能和80℃水热加速养护条件下砂浆棒自由线性膨胀率实验，结合SEM等微观测试技术，分析探讨了不同基体强度对钢渣砂砂膨胀行为的影响及水热养护不同龄期的力学性能与自由线性膨胀率的关系，从力学角度阐述了SSM膨胀破坏的机理。

According to a great deal of tests, each mechanics property and anti-cracking performance of polypropylene fiber cement stabilized macadam were investigated systemically. The main content includes:(1) The formulae of shrinkage stresses of semi-rigid base course were deduced. This thesis analyzed each influencing factor of the maximum value of shrinkage stress and the cracking rule of semi-rigid base course. At the same time, the corresponding prevention measures of the cracks were presented.

通过大量试验，对聚丙烯纤维水泥稳定碎石的各种力学性能和抗裂性能进行了系统的研究，主要内容包括：(1)推导了半刚性基层收缩应力的计算公式，对影响最大收缩应力的各种因素及半刚性基层收缩裂缝产生的规律进行了分析，提出了相应的路面裂缝防治措施。

In order to settle the difficult problem of deforming and cracking of a shaft furnace's ridge under high-temperature conditions,reform measures were put forward on the basis of an analysis of causes of deforming and cracking of the ridge .

为解决竖炉脊顶高温工矿条件下变形开裂的难题，在对脊顶变形开裂原因进行分析的基础上，提出了改造措施。

The paper adopted the contract model according with the fact, studied the effect of contract condition on reflection cracking, analyzed the main factor of reflection cracking caused by temperature changes.

本文采用了更符合实际情况的接触模型，利用ANSYS 中热分析和接触分析的耦合技术，详细研究了在温度荷载作用下的接触条件对反射裂缝的影响，分析发现了接触条件是产生温度型反射裂缝的主导因素。

As the quality of 8B and 20# aviation engine oils from soft wax cracking is unstable and product yield is low, the semi-refined wax was used as feedstock of optimized cracking process to produce C5～13 normal alpha olefins, which are synthesized to yield the base oil of 8B and 20# aviation engine oils.

针对8B和20号航空润滑油产品质量不稳定、产品收率低等难题，在优化裂解工艺的基础上，以半精炼蜡裂解生产的C5～C13正构α-烯烃为原料，同时合成8B和20号航空润滑油。

The α-BaB〓O〓 crystal is colorless, transparent and without cracking. The cracking problem has been overcome by a special growth procedure. The dislocation density, crystallization morphology and growth habit of α-BaB〓O〓 crystal have been systematically studied by chemical etching method, X-ray laue orientation of synchrotron radiation, double-crystal diffraction topography. The growth striation and irregular dislocation consist of the primary defect in α-BaB〓O〓 crystal. The convex solid-liquid interface is stable during the whole growth process.

在国际上首次采用提拉法生长出φ50×40mm〓的α-BaB〓O〓晶体，生长方向为[0001]，晶体完整、无色透明；提出了三种固相反应的原料制备方法，并保证B〓O〓过量1mol%；采用独特的生长装置和程序有效地解决了α-BaB〓O〓晶体易开裂的问题；首先采用化学腐蚀法、白光X射线衍射术、X射线双晶衍射形貌术等研究了α-BaB〓O〓晶体的位错密度；首次采用同步辐射X射线劳埃定向术研究了α-BaB〓O〓晶体的结晶形态及生长习性；结果发现α-BaB〓O〓晶体的缺陷以位错为主，部分α-BaB〓O〓晶体中存在生长条纹。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。