chā kǒu ㄔㄚ ㄎㄡˇ 叉口
对高炉热风主管、围管三叉口组合砖的设计计算进行了探讨和实践。
The design and calculation combined bricks in trident of main and round hot blast pipes on b.
对高炉热风主管、围管三叉口组合砖的设计计算进行了探讨和实践。
The design and calculation combined bricks in trident of main and round hot blast pipes on B. F. were studied and practiced.
演奏时运用了大量的技巧，如震音、连奏、花舌音、垛音、滑音、颤音、泛音、叉口等。
A large number of techniques are used when playing these wind instruments such as tapping appogiatura tremolo legato "flower tongue" augment glide trill overtone and prong .
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