求翻译：1.5平方公里起步区本期新建4座11kV开闭所（1400万元），为保证新建开闭所与临时电厂之间、用户之间的供电通道，本期需新建3×7孔排管约10.5km（6615万元），是什么意思？

1.5 square kilometers of starting area for the current new four 11kv opening and closing (1400), in order to ensure the new opening and closing with the temporary power plant between the supply channel between the users, need to issue new 3 × 7 holes row tube of about 10.5km (6615)

Start the 1.5 square kilometer Zone 4 is the new 11 kV On and Off ( $14 million), in order to ensure that the new open and close with the power plant, and among the users of the channel, and the power to create new 3 ×7 holes tube about 10.5 Km ( $66.15 million),

正在翻译，请等待...

1.5 km qibuqu present 4 new 11kV switching station (14 million dollars) in order to ensure the new switching station, between power supply channel between the user and temporary power plant, new 3x7-hole pipe will be about 10.5km for the current period (66.15 million yuan),

1.5 square kilometer start area this issue of newly built 4 11kV make and break (14,000,000 Yuan), for between between the guarantee newly built make and break institute and the temporary power plant, user's power supply channel, this time need the newly built 3×7 hole platoon to govern and restrain