该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......

At present, the tortuous emitter has the most advanced performances in drip irrigation. But the theories and methods for......

提出一种基于凸松弛的全局优化电磁辐射源定位方法，可针对重要区域及周边存在的危险电磁辐射源（敌方侦测源、干扰源、电磁杀伤源）进行......

本文对滴灌技术的发展历史进行了回顾，对灌水器的发展历史以分类和工作原理进行了总结，对新型的重力滴灌做了介绍，对滴灌系统的堵塞原......

为了阐明滴头制造偏差系数、灌水均匀度、毛管直径及毛管造价的内在联系,降低滴灌系统造价、提高灌水均匀度,通过理论推导结合实证......

在试验室内，对研制的微压灌水器进行了水力性能试验。试验结果表明：在微压（2～5m）工作时，新型微压滴灌灌水器在自由出流状态下的出流规律......

Many regions around the world are characterized by limited water resources, where the average annual per capita renewabl......

Comparing and evaluating the Nationally Determined Contribution(NDC) is an important element in global stocktake in the ......

Single-photon emitters (SPEs) are one of the key components in quantum information applications. The ideal SPEs emit a s......

Six-year old apple trees were selected for field experiment.The objective of this study was to obtain the reasonable arr......

Various single or multi-modality therapeutic options are available to treat pain of bone metastasis in patients with pro......