in the main
1. 基本上
The letters, in the main, were from his father.
这些信大部分是他父亲写来的。
习惯用语for [in] the main1.大致, 基本上, 大体上; 总地来说the Spanish M-1.西班牙美洲大陆turn on the main1.[俚]哭出来with [by] might and main1.竭尽全力特殊用法air main1.主风管air-line main1.【采矿】主压气管道ballast main1.压载水总管bilge main1.舱底水总管, 疏水总管blast main1.鼓风管, 主风管cargo main1.货油总管collecting main1.总管, 干管; 集流管, 集水干渠crossover main1.桥管dead-end main1.死头管direct-current main1.直流电源distributing main1.配电干线; (流体)输送干线; 给水总管dry main1.干总管; 干馏气管electric main1.电力干线equalizing main1.平衡管道exhaust main1.排气总管feeder main1.馈电干线filling main1.装油的干线force main1.压力干管force-feed main1.增压输送管路fuel main1.(燃油)总管gas main1.总气管, 煤气总管heating main1.供暖干管, 暖气总管high-pressure main1.高压总管[母管]high-tension main1.高压馈电线horseshoe main1.马蹄铁管(老式高炉上不连通的马蹄铁形环风管)hot-water supply main1.热水干管hydraulic main1.水压主管interconnection steam main1.互联蒸汽总管neutral main1.中(性)线oil drainage main1.排油总管power mains1.动力干线, 输电线; 电源, 供电网pump main1.泵排出[输出, 导出]管pumping main1.增压管路[总管]recirculating main1.环流总管return main1.回汽[回水]干管ring main1.闭合[环状]干线service main1.支[分]干线ship's mains1.舰船电力网steam main1.蒸汽总管stripping main1.清舱总管suction main1.吸入总[干]管supply main1.馈电[供电]干线; 供应[给水]总管tar main1.焦油总管theatre main1.剧场干线town mains1.城市(煤气)总管water main1.给水干管[总管]windlass main1.抽风总管, 大风道