This kind of noise, spindle bearing produce proof quality problems or spindle bearings use life has to wear, or after the decline in the quality or damage, can consider to change at this time. 这类噪音的产生,证明主轴轴承存在质量问题或者主轴轴承使用寿命已到,或者磨损后质量下降或损坏,此时可以考虑更换。
Construction Vulnerability Analysis and Earthquake proof Quality Comparison 建筑物结构易损性分析及抗震性能比较
The operation test has shown that the said package features a good sound isolation performance, which approaches the world advanced level of sound proof quality of gas turbine packages. 经开车试验,证明S1A&02箱装体隔声性能良好,接近世界上先进的燃气轮机箱装体的隔声性能。
No misgivings : Our extensive 3 year written guarantee is proof of quality. 没有担忧:我们的3年书面保用实在证明了质量的可靠。
Objective Applying quantitative method for abelmoschus manihot and providing the proof of quality specification in the abelmoschus manihot. 目的建立黄蜀葵花中金丝桃苷含量测定方法,为建立黄蜀葵花药材质量标准提供依据。