A method for drilling a well with a drilling apparatus comprising a drill string and a bit, comprising attaching a cleaning tool comprising a coaxial pipe and at least one vortex spinner to a portion of the drill string above the bit, inserting the drill string into a wellbore, extending ...
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Cleaning solutions and methods for semiconductor wafersdoi:US6394106 B1US
ISO 10121-1:2014旨在提供客观的实验室试验方法,建议的仪器,规范性试验部分和规范性试验,以评估用于一般过滤应用的气相空气净化设备的三种不同固体气相空气净化介质(GPACM)或GPACM配置.ISO 10121-1:2014专门用于挑战性试验,而不是一般材料评估或孔隙系统表征.ISO 10121-1:2014中确定的三种不同类型的GPACM是GPACM-...
In a suction hood (2) for a wet floor cleaning machine (1) in which a motor-driven scrubbing roller (3) rotates, accompanied by application of water, on an axle (free-arm axle) which is clamped in on only one side within the suction hood (2) which overlaps this axle (7) at both...