w, silicon zener diode. nominal voltage 43 v, current 17 ma, +-5% tolerance.

w, silicon zener diode. nominal voltage 75 v, current 10 ma, +-5% tolerance.

3瓦，硅稳压二极管。额定电压75伏，电流为10毫安，+-5%误差。

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w, silicon zener diode. nominal voltage 39 v, current 19 ma, +-5% tolerance.

3瓦，硅稳压二极管。额定电压39伏，现在的19毫安，+-5%的误差。

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the nominal voltage of the load, in volts rms.

负载电压额定值，单位是伏特

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the nominal voltage must of course be lower than the rated voltage, so there's a satisfactory margin of safety.

该标称电压，当然必须要低于额定电压，所以有一个令人满意的保证金的安全。

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less than nominal voltage (200 to 240 volts ac)we recommend that you replace the battery cell to? correct this problem.

低于正常电？压（200至240伏AC交流电）我们建议您替换电池单元来解决这个问题。

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i regret that a previous engagement prevent me from accepting your kind invitation.

我很遗憾之前的约会使我不能接受你善意的邀请.

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we have a previous engagement that day.

我们那天有约了.

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i have a previous engagement.

我已经有约了.

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i have a previous engagement at 6: 30.

6点半我先已有约.

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i cannot see you on monday because i have a previous engagement.

星期一我不能见你,因为我有约在先了.

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i can't go, for i have a previous engagement.

我不能去, 因为我有约在先.

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i'd love to, but i'm afraid i have a previous engagement.

我很愿意去, 但恐怕已跟别人事先有约.

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i am unable to attend because of a previous engagement.

我因有约在先故不能出席.

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sorry. i have a previous engagement.

对不起, 我已经有约了.

轻松英语会话---联想4000词(上)

thanks, but i have a previous engagement.

谢谢, 我已经早有安排了.

轻松英语会话---联想4000词(上)

apply the following blending options to the shape you selected in the previous step.

在前一步选择的形状上应用下面的混合选项.

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the runtime next searches parent assemblies, as in the previous step, through many potential levels.

运行时接下来在许多可能的级别搜索父程序集(如前面步骤中所述).

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repeat the previous step to add more breakpoints.

重复上面的步骤以添加更多断点.

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if diaphragm is wrinkled, repeat previous step.

如果隔膜折皱, 则按照前面的步骤更换.

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reconnect the jumper wire as in the previous step.

象前一步那样重新连上跳线.

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