In 1319, all the floors were finished and years later, work eventually began on the bell chamber at the top.
1319年，所有的楼层都竣工了，数年后，工作终于开始集中在顶部的钟房。
The three dimensional flow field for the bell type swirl chamber diesel engine is first calculated. The calculated results and LDV measured data are compared, which show fairly good agreement.
首次对吊钟型涡流室式柴油机的流场进行了3维计算，计算结果与LDV实验结果具有良好的一致性。
LGJ-25 frozen- dryer assembles two functions of pre-freeze and freeze-drying. The chamber selects the structure of the bell glass. The shelves are heated by electricity.
LGJ-25型冷冻干燥机集预冻、冻干功能于一体， 干燥箱为钟罩式结构，搁板选用电加热方式。
LGJ-25 frozen- dryer assembles two functions of pre-freeze and freeze-drying. The chamber selects the structure of the bell glass. The shelves are heated by electricity.
LGJ-25型冷冻干燥机集预冻、冻干功能于一体， 干燥箱为钟罩式结构，搁板选用电加热方式。
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