The method of electrical heating screw pump production is developed.
为此，提出了电热杆螺杆泵采油方法。
A complete electrical heat-tracing system is much more than just the heating cable.
完整的电伴热系统不仅包括电伴热线。
After you have done that take off the electrical faceplates and heating register covers.
起飞后，你所做的登记，包括电气面板和取暖。
After you have done that take off the electrical faceplates and heating register covers.
起飞后，你所做的登记，包括电气面板和取暖。
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