Low voltage supplied to the heater, indicating that cable diameter is too small or run is too long.
加热器的供电电压低。可能连接到加热器的电缆直径过小或长度过长。
The deep well coal road cable of small diameter hole and high pre-tension structure and craft were studied according to the condition of high stress and composite roof in Fengcheng coal field.
结合丰城矿区高地应力、合顶板等复杂地质条件，研究深井条件下煤巷锚索采用小孔径、加高预应力的结构形式和施工工艺。
Comparatively, the sensitivity of coaxial cable with small diameter was higher than that of cable with large diameter.
相比而言，较小直径的电缆的敏感性更高，为实际工程应用提供依据。
Comparatively, the sensitivity of coaxial cable with small diameter was higher than that of cable with large diameter.
相比而言，较小直径的电缆的敏感性更高，为实际工程应用提供依据。
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