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(接上期)3.温度和湿度木管上出现裂纹、开裂,几乎都源于温度和湿度的骤变。例如:单簧管的管筒和上管,上管和下管或下管和喇叭口等的接口处,如果吸湿膨胀拔不出来或相反插不进去时,一冷却或一加热,开裂的危险就会加大。另外,受冷的乐器应避免用暖气等突然加热,应用室温或体温缓慢加温。说明:尤其是小型吹奏乐器,其音高一热就高,一冷就降。因此在演奏之前有必要事先加热到体温的程度,否则在吹奏中,因气息的温度,音程会出现紊乱。4.键子上油木管乐器的“金属铰
(Continued) 3. Temperature and humidity cracks appear on the wood, cracking, almost all from the sudden changes in temperature and humidity. For example: the clarinet tube and the tube, the tube and the tube or under the tube and the bell mouth and other interfaces, if the hygroscopic expansion can not pull out or not inserted into the opposite, a cooling or a heating, the risk of cracking will Increase. In addition, the cold musical instruments should avoid sudden heating with heating, application of room temperature or body temperature slowly warming. Description: Especially for small wind instruments, the pitch is high and cold as it is. Therefore, before playing it is necessary to heat to the extent of body temperature, or playing, due to the temperature of the atmosphere, the tone will be disorder. 4. Key oil woodwind instruments ”metal hinges