make-and-break key 中文意思是什麼
make-and-break key
解釋
開關-
The key to the time control of newly - built projects is to fix project ' s general control task time and stage control task tine, and break them up to the time plan to realize the project ' s early operation and benefit achievement ; the time control should aim at practicing the plan but not affecting the project ' s annual irrigation plan, by working out plan, following up the construction and timely error correcting management to make sure the achievement of project ' s task time
新建項目的施工進度控制的關鍵是要合理地確定項目總控制工期和階段性控制工期,並將其分解落實到進度計劃中,以實現工程及早投運、及早發揮效益的目標;更新改造項目的進度控制則要以進度計劃的落實不影響工程的年度灌溉計劃為目標,採取合理制定計劃、跟蹤施工、及時糾編的管理辦法,確保項目工期目標的實現 -
The key of this method is that get the time when current value equal zero beforehand, and try to make the circuit break at that time
達到這個目的的思路是求取短路電流的過零點,試圖在過零點切斷電路。
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