These measures significantly reduce the resistance and laminar flow zone in the shell side. The gaspipeconnection orientation on the shell side can be freely selected.
这些措施显著降低了壳程阻力和滞流区，壳程的气体接管方位可任意选定。
2
This receiver requires an antenna and ground. The ground connection can be made to a water pipe (NOT a gas pipe!). The antenna can be a 50 foot length of wire stretched outdoors between two objects.
此接收机需要天线和地线，地线可以为金属水管(不能是煤气管)，天线可以是50英尺的线挂在两个物体上。
3
By surrounding a gas-tight, pattented V-Seal with two compressed knitted wire mesh air gap spacers, the connection is made by simply sliding one section of pipe over another.