您要查找的是不是:
- Beam propagation factor(BPF) was introduced as the beam quality factor for the combined beam. 引入光束传输因子(BPF)作为合成光束的光束质量评价因子,计算了单元光束质量、大气传输、跟踪抖动、相位控制等因素对合成光束质量的影响。
- Inclined combined beam model with roof bolted are presented and solved,the expressions of support parameters of bolt are derived. 建立大倾角煤层回采巷道锚杆支护的倾斜组合梁模型,并进行解算,给出锚杆支护参数的表达式。
- Forward support bolt combined with roop rock by bolting can play a roll of combined beam,which can prevent roof rock caving immediately after explosion. 超前支护锚杆锚固后与顶板岩石构成一体,这样使超前锚杆形成组合梁作用,放炮后,能够阻止顶板岩石冒落。
- This paper described the practice of using combined beam theory and suspensory theory,such as roof bolt,net,steel rope,and shotcrete being used together to strenthen roof control. 应用组合梁和悬吊理论,对松软岩层采用支护新技术,即锚、网、带、索、喷等联合支护方式,加强对松软岩层巷道顶板的控制,降低了材料支护费用,提高了软岩巷道支护的可靠性,同时也提高了松软岩巷的掘进速度。
- The far-field intensities and divergence angles of combined beam of two copper vapor lasers with UR90 resonators coupled at small magnification (M=1.21) were measured and analyzed experimentally. 并利用铜蒸气激光器实现了两台低放大倍率(M=1.;21)UR90腔的相干并束输出,对输出光束的远场方向性进行了测量分析。
- cable-concrete combined beam structure 索-混凝土组合梁
- He observed that when light from a single source is separated into two beams, and the two beams are recombined, the combined beams produce a pattern of light and dark fringes. 他发现,把一束同源的光分成两束,再把这两束光重新组合在一起,组合的这两束光将产生具有明暗条纹的图样。
- She performed on the balance beam with much grace. 她在平衡木上表演得非常优美。
- The beam of the searchlight pierced the darkness. 探照灯的光柱射入黑暗中。
- His answer was right on the beam. 他的答案完全正确。
- The two parties have combined to form a government. 两党已经联合起来组成政府。
- The combined fleet is armed to the teeth. 这支联合舰队全副武装。
- He struck the beam with his head. 他的头撞到梁上了。
- The beam has a thickness of 3 inches. 这根梁厚3英寸。
- Never heard of her. You're off the beam. 我从来没有听说过这个人,你搞错了吧。
- inherent-stress concrete I mode combined beam bridge 预应力混凝土Ⅰ型组合梁桥
- In sum, theory must be combined with practice. 总之,理论必须同实践相结合。
- Mind you don't knock your head (on this low beam). 小心,别(让这根低梁)撞著头。
- Sighted land off the starboard beam. 转向右舷方向便望见了陆地
- The gymnast poised herself on the balance beam. 体操运动员在平衡木上保持平衡。