Mechanical cutting provides one of the most flexible and environmentally friendly excavation methods. It has attracted n......

Mechanical cutting provides one of the most flexible and environmentally friendly excavation methods.It has attracted nu......

针对包钢无缝钢管厂Φ180 mm生产线,高硬度轧辊加工困难车削时易崩边的现状,对现有技术条件,车削工艺和设备进行分析,阐述了工艺、......

目的：探讨口内入路钻凿法截骨矫治下颌角肥大的临床治疗效果。方法：采用口内切口，以拟缩进的下颌角为基点设计弧形截骨线，在其外侧用牙......

介绍了当前广泛应用的备木生产线中原木剥皮、削片、木片筛选、过大木片再碎、木片贮存、树皮及木屑处理以及原木冲洗等系统的特点......

The transition from grinding to chipping can be observed in tunnel boring machine (TBM) penetration test data by plottin......

以实际调查资料为依据,通过对山上和山下两种削片工艺类型的研究.证明山上削片的生产成本和利用率均优于山下削片.山上采伐剩余物......

在超宽带穿墙雷达压缩感知成像中，常常使用Rademacher序列作为模拟信息转换器的chipping序列。而这种序列的功率谱类似于高斯白噪声......

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Increases in wildfire activity in the western United States have prompted land managers to reevaluate management practic......

本文对石蒜（Lycoris radiate）、中国石蒜（L．chinensis）、长筒石蒜（L.longituba）、换锦花（L.sprengeri）4种石蒜属植物从种球繁殖方面进行了初......

This paper describes types and characteristics of zirconia materials in relation to their applications in dentistry.The ......