An overhead powerline is an electric power transmission line suspended by... is usually transmitted over long distance through overhead power transmission lines . Underground power transmission ...
1.不用掘開地面作維修，此舉不會影響到交通。 因用高壓傳送，電流會比較細，相對導體面積不用太大。 2.在高壓area行過好易會觸電，還有磁場會影響人的健康(如癌症)。
...allocation To allocate the cost, we would consider those overhead expenditure which cannot be directly assigned...apportionment A. Two-stage method 1st stage: overheads are assigned to the cost centre...
分類：教育及參考書 > 高等教育 (大學或以上) 2008年02月27日
Overhead electric cable 係指架空電纜 overhead 可以指在頭上的, 例如投影機叫 overhead projector, 因為他一般安裝在天花板上作放映的 Fertiliser 係 肥料
Distribution Overhead is part of the Selling Overhead . Selling Overhead ...
分類：商業及金融 > 其他 - 商業及金融 2008年10月07日
(1). Scan through all the e-mail and fax instead of printing all the receievd message out. You can have a build-in fax in the computer which can allow you check the message in the computer when they are receievd. To reduce the waste in stationary, you can set up a system for collection the stationary. every employee...
優點: 較安裝天線便宜 可用更高傳輸電壓,工作電壓較彈性 容易分支 容易廷伸 容易尋找故障 慳錢 減少損耗 提高效率 減少電壓降
要將powerpoint放上大屏幕要用投影機(projector).你可以將佢睇成係一個電腦屏幕咁接駁.只要將原本接去LCD屏幕既訊號線(VGA或者DVI)接去投影機就得.如果你既電腦支援雙顯示屏,咁甚至可以一邊接LCD mon,一邊接投影機,咁就可以一個對住LCD mon入接令,另...
我記得sir話因為aluminium比較輕(因為這電線一向都只是由左右兩邊既塔,支持住,所以越輕越好, 比較安全) 同埋佢都係一個good conductor, 所以就用aluminium.只於用咩其他metal就唔太清楚....
