An efficient barrel cooling system is important to control the tendency for mechanical shear heat developed in the melt to override the electrical heater controls.
一个高效的桶式冷却系统至关重要，可以控制机械剪切热在熔体中的发展趋势，从而超越电气加热器控制。
Only turn the water heater on when necessary, and adjust temperature controls to avoid overheating.
热水器不用就别开，温度控制不要过热。
Portable powerful instant gas air heater, enclosed gas controls, heavy-duty steel construction, equipped with high performance fan auto shut off if power is interrupted or flame is extinguished.
便携式空气加热器，燃气控制，重金属结构，耐用风机，在电源切断或火焰熄灭的情况处动切断。
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