1. The flared end is then drawn up by the tube nut so the inside surface is tightly secured against the ball seat of the fitting.
接着通过管道螺母将扩口端拔出使其内部表面与管件球座紧密结合。
2. Before operation, current ratio obtained by means of connection of primary terminal in series or parallel and connection of secondary terminal must be checked, seeing whether it comply with the requirement. All fixing fitting must be screwed tightly in order to prevent loose contact, which causes a high temperature rise or secondary opening circuit.
5.5.6安装调试注意事项：Instruction of installation 5.5.6.1产品在运行前必须检查一次串并联方式与二次出线联接所获得的电流比与实际使用要求是否相符，联接方法参考铭牌上的接线图，所有紧固件必须拧紧，以防止接触不良造成温升过高或二次开路。
3. Full dentition fitting tightly to maintain strong chin.
为保持腭部的强壮，（齿）要紧密咬合。