不同的桁架节点形式，分析了桁架腹杆两端与弦杆的连接和弦杆与柱连接形式对结构受力性能的影响。
Different node form, the connection of web to truss chords and connection of truss chords to frame column are discussed.
最简单的形式三和弦，可转位为原中间音或原最上面的音置于底部。
In their simplest form, triads, or three-note chords, may be inverted by having either the original middle or the original top note at the bottom.
有时吉他手要按和弦方便，但又不一定要小调或大调，这时就可以用形式调弦。
Sometimes a guitarist will want a tuning that will permit very easy chords but not be definitively minor or major.
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