The use and development of livestock breeds and the conservation of valuable breeds that are of little current interest to livestock producers need to be upgraded.
需要加强畜牧生产者当前很少关注的畜牧品种的利用和开发及有价值品种的保存。
This device is practical in the realisation of unattended power substation and earthing system with little current.
该装置对于小电流接地系统及实现变电站无人值班具有广泛的应用价值。
They require little current, need no backlighting and can be produced for little more than half of the cost of a liquid crystal display screen.
它们需要的电流很小，不需要背光，并能以液晶显示屏一半多一点的成本生产。
Theory analysis and experiments prove that such tri-state power amplifier has a series of advantages such as: little current wave, slight electromagnetic interference, high efficiency and so on.
理论分析和试验表明，该功率放大器具有电流纹波小、电磁干扰小、效率高等优点。
Theory analysis and experiments prove that such tri-state power amplifier has a series of advantages such as: little current wave, slight electromagnetic interference, high efficiency and so on.
理论分析和试验表明，该功率放大器具有电流纹波小、电磁干扰小、效率高等优点。
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