main trunk line

基本解釋

These gathering systems are normally owned by the pipeline company that operates the main trunk line.
集油琯道系統(tǒng)和原油乾線琯道常歸琯道公司所有。
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With the development of these town groups, the transportation problem is also aggrandized increasingly, of which the main manifestation is the lag of the construction of trunk line network.
隨著這些城鎮(zhèn)群的發(fā)展，交通問題日益突出，其中乾線路網(wǎng)建設(shè)滯後是其主要表現(xiàn)。
The highway is open to traffic the mileage and wills have the significant increment, the grade has the exaltation, will set up at a high speed the highway is the main National Freeway trunk line net .
公路通車裡程將有大幅度的增加，等級(jí)有所提高，將建成以高速公路爲(wèi)主的國道乾線網(wǎng)。