Some problems such as concrete cracking, bigger deflection of span and abandoned beams caused by construction quality have appeared in the completed prestressed concrete voided slab Bridges.
在已建设的众多预应力混凝土空心板桥梁中，存在出现混凝土裂缝、跨中挠度过大及因施工质量问题而造成废梁等问题。
The paper introduces quality control technologies for concreting work, curing of beams, stretching and pressure grouting in the course of bridge precasting in the frigid plateau region.
介绍了高原高寒地区预制桥梁施工过程中混凝土施工、梁体养护、张拉压浆等的质量控制技术。
Rotary grouting method for foundation consolidation under the runway beams of container storage yard is characterized with good reliability, high quality and little sedimentation after construction.
旋喷注浆法加固集装箱堆场跑道梁具有可靠性好，质量高，工后沉降量小的特点。
The application of high-power laser diode arrays (LDA) is becoming wider and wider, but the quality of output beams from LDA is poor for its unique mechanism of luminescence.
大功率半导体激光器阵列(LDA)的应用日益广泛，但受其发光机制的限制，光束质量较差。
It is also shown that the second-order moment method of the power density is applicable to the truncated beams and overcomes the divergence difficulty of the beam quality factor.
功率密度的二阶矩方法可用于截断光束，并克服了光束质量因子的发散困难。
This story isn't told to you by poems, languages or images, but by the typical architectural words, such as space, light beams, shades, lines, colors and good quality.
讲述这个故事不是诗，不是语言，不是影像，而是空间、光线、阴影、线条、色彩、质感建筑特有的语言。
Beams combination is the only way for development of high power and high beam quality solid state lasers.
光束合成是研制高功率、高光束质量固体激光器的必由途径。
The beam quality factor of partially coherent ChG beams decreases with increasing spatially coherence and decreasing decentered parameter.
光束质量因子随空间相干性的增大和离心参数的减小而减小。
The machine frame, beams, channels, thick wall square tube, thick wall plates, wall plate is USES the high quality of Q235-A steel.
整机机架，工字钢、槽钢、厚壁方管、厚壁钢板、墙板等就采用优质Q235-A钢材。
Propagation of high intensity laser beams through long air paths suffering from energy loss and beam quality deterioration was experimentally demonstrated.
研究了强激光长程空气传输过程中主光束能量损耗与光束质量退化效应。
This article describes the latest Danieli Morgrdshammar PSP technology for the competitive production of superior quality beams, sections, special profiles and rails.
介绍了有竞争性的生产超级钢梁、型钢、特种型材和钢轨所用的达涅利摩加沙玛公司的最新PSP技术。
The spherical aberration results in an increase of the beam quality factor of flat-topped beams.
球差使平顶光束通过透镜后的光束质量因子增大；
Optical Beam Quality Factor of Nonparaxial Light Beams. I. Definition.
非傍轴光束的光束质量因子.I。定义。
Optical Beam Quality Factor of Nonparaxial Light Beams. I. Definition.
非傍轴光束的光束质量因子.I。定义。
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