The    Piston Pump Manufacturers   states that the operation of any piston pump is based on the relative motion between the piston and the cylinder. It follows that if the plunger is stationary and the barrel moves, the same pumping action is achieve…
1 rated pressure selection. The rated pressure of the vane pump products is 7MPa, 1OMPa, 16MPa, 2lMPa, 25MPa, 28MPa and 30MPa. The same vane pump products use different working media and different rotational speeds, and their rated pressures are also…
Part three of our article series on the common phases of type 2 diabetes management By Lance Porter Almost everyone who begins taking insulin (for either type 1 or type 2 diabetes) starts with a program of multiple daily injections, using either a ne…
When the     Gear Pump Manufacturers    prompts to install a gear pump, the following points should be noted: When using a gear pump, a pressure relief valve must be installed to protect the pump when the pump is closed or the valve is closed. The PR…
What is an airless pump bottle?Unlike conventional dispensers that use a tube or suction tube to draw the product out, the airless pump bottle has a vacuum mechanism. Airless pump bottles are divided into three parts: Base: There is a small hole in t…
Plastic bottles are now an indispensable container in life. Plastic bottles will appear in all aspects of life. Plastic bottles are ubiquitous, many styles are diverse, but the invention of a plastic bottle can be said to be unique, that is, spray pl…
The Plastic Sprayers Manufacturer   stated that the sprayer is a very useful type of machine and a good example of the basic piping principle. The sprayer head consists of only a few parts. It has a trigger lever that activates a small pump. The pump…
Disposable microfluidic devices: fabrication, function, and application Gina S. Fiorini and Daniel T. Chiu BioTechniques 38:429-446 (March 2005) This review article describes recent developments in microfluidics, with special emphasis on disposable p…
http://en.wikipedia.org/wiki/Comparison_of_Intel_graphics_processing_units Comparison of Intel graphics processing units From Wikipedia, the free encyclopedia     This page contains information about Intel's GPUs and motherboard graphics chipsets in…
############1   迁移数据库的集中方法 三.相关技术 迁移方式 优势 不足1 Export and import • 对数据库版本,以及系统平台没有要求 • 不支持并发,速度慢• 停机时间长 2 Oracle Data Pump • 多进程并发 • 要求10g以后的版本• 适合中型数据库 • 不支持XML和spatial数据类型 3 Transportable tablespace (TTS) database •快速,适合大型数据库 • 要求10g以后的版本• 可以跨平台,但是要…