查询词典 welted seam

Study on large scale stereo scopic simulation for shallow seam mining.

柴敬。浅埋煤层开采的大比例立体模拟研究。

Hypoground coal of taiyuan group of which roof is the second limestone karst water (L2) confined aquifer is main coal mining seam in Siwan of Hebi mine.

鹤壁矿区寺湾煤矿主采煤层为石炭系太原群下夹煤岩，顶板为太原群第2层薄层灰岩岩溶水承压含水层。

Barrel lining is equipped with solid model of hard alloy sheath, which enhances the strength of the sheath body and completely overcomes the splintery problem at the seam crossing between bush splices.

机筒内衬有整体式硬质合金套，提高了套体的强度，完全克服了拼接衬套接缝处易裂的问题。

The glossy black accent panel, pretty wild and rakish in its day, wonderfully contrasts the body color along with the black, stippled and twin-seam lined top.

平滑的黑色口音仪表板，漂亮的荒野和青快的在它日子中，连同黑一起令人惊奇地对比车体彩色，点刻和双排-流缝划线了顶端。

The third one was collected from Coal Seam No.11 in the top of Longtan Formation in Dahebian Coal Mine of Shuicheng Mining District, Guizhou Province, South China Subprovince of the Cathaysian Flora in China.

讨论了这 3种新的科达植物分散角质层所具有的古植物学意义。

The third one was collected from Coal Seam No.11 in the top of Longtan Formation in Dahebian Coal Mine of Shuicheng Mining District, Guizhou Province, South China Subprovince of the Cathaysian Flora in China.

其中2种采自华北亚区南缘的安徽淮南新庄孜矿山西组A1煤顶板，地质时代为早二叠世；另一种采自华南亚区的贵州水城矿区大河边矿龙潭组顶部的11号煤层，地质时代为晚二叠世早期。

After the welding finishes, further reduce the welding stress by adopting partial high temperature annealing as follows, heat the welding-repaired seam and steel plate around up to 600℃ with tracklayer heating device, and then cover it with mountain leather to hold temperature, cooling down slowly.

焊接完成后采用局部高温退火的办法进一步消除应力。具体做法是：用履带式加热装置将焊补焊缝及周边钢板加热到600℃，用石棉覆盖保温，缓慢冷却。

This article tries to summarize experiences of the small collieries in mining shallow coal seam in north of Shanxi Province, and suggests to reform unadvanced mining of room and pillar to longwall remaining coal pillars support mining which can largely inprove the coal recovery rate.

在总结陕北煤田小煤矿开采浅部煤层经验的基础上，建议将落后的房柱式改革为长壁留煤柱支撑法开采，以较大幅度提高采出率。

Side seam,hips part,cash pockets and waistband with or without pleats can be designed.the trousers bottom have always been uncuffed or plain bottom.

可设计侧缝，臀部，裱袋以及腰头，裤腰处可设计成有或没有褶裥，裤子下摆一般设计成不折边或平脚。

Suspensorily joined structure has the virtue that the construction progress is normally fast and does not hinder the traffic underbridge because Travelling Carriage is not used,but requiring comparatively large construction plant, high complexity in seam assembling, lower structural integrity compared to the suspensorilyplaced are its faults.

预应力混凝土T型刚构加挂梁结构是公路桥梁常用的一种桥梁结构型式，这种桥型根据施工方法的不同可分为悬浇和悬拼，悬浇结构需采用挂篮施工，优点是结构无干接缝，整体性好，刚度大，施工占用场地少，缺点是施工期间挂篮将影响桥下的通航通车，施工周期长；悬拼结构的优点是无需采用挂篮施工施工进度快，对桥下的通航通车影响较小，缺点是需占用较大的施工预制场地，拼装接缝处理难度大，结构整体性较悬浇差。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。