第二天晚上他们要去参加一个化装舞会，娜拉届时将装扮成一个那不勒斯的渔家女，表演塔兰台拉舞。
The following evening they were to attend a fancy dress Ball, and Nora was to go as a Neapolitan fisher girl and dance the tarantella .
图6.20所示为一台市售的条纹倍增和细化装置，它安装在一台便于使用的专门设计的偏振光弹仪上。
Figure 6. 20 illustrates a commercially available fringe multiplication and fringe sharpening apparatus mounted on a polariscope specially designed to facilitate these applications.
催化裂化装置能量回收技术自70年代中期开始开发、应用，至今已有60余台套机组投入运行。
Since the energy recovery technology in FCC has began to develop and apply in the middle period of 70's, 60 sets of flue gas turbine have been operated up to now.
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