Piping is an important part of any process plant because there is so much of it.Most home piping is of small size and is put together by screw threads cut into the pipe.
Piping is an important part of any process plant because there is so much of it.Most home piping is of small size and is put together by screw threads cut into the pipe.
往复式压缩机能提供几磅压强或压强极高的气体，可达35000lb/in2。往复式压缩机的典型特征和往复泵一样，它们都具有活塞、合适的吸气阀、排气阀、气缸和驱动曲柄轴。压缩机由一个或多个这样的元件组成。单个或几组元件并列则构成单级压缩机。
In the industry process,plants most often transport materials in a fluid statethat is,as a liquid or a gas.In general fluid are much easier to transport from one place to anpther than are solids.
"We believe all citizens have an inherent right to the enjoyment of pure and uncontaminated air and water and soil;that this right should be regarded as belonging to the whole community;
Atmospheric dust is a complex mixture of smoke,mists,fumes,dry granular particles,and fibers suspended in air.In addition air may contain living organisms such as mold spores,bacteria,and plant pollens that may cause diseases or allergic responses.
This passage describes how it is possible to Separate the gases in the air.Some of the properties of these gases are also mentioned. The important uses of gases,obtained from the air,have been found.
比泽尔半封闭冷库压缩机不仅适用于传统R22制冷剂，而且在不用更换任何零部件的情况下就可使用无氯环保R407C、R404A、R134A、R410A、R507制冷剂。比泽尔还专门为低温冷库和空调开发出特种压缩机，在使用134A制冷剂的情况下其最高冷凝温度可达85摄氏度。