配置中空双面钢化玻璃，隔音、隔热、安全性能佳。玻璃内可配置电动或者磁控百叶帘，可免除装普通窗帘清洁的烦恼。
The double-faced hollow toughened glass provides good sound insulation, heat insulation and safety. Installing power-operated or magnetic control shutter will save you the trouble of curtain cleaning.
本文依据因次分析的基本原理，研究了装煤时旋叶升角的变化函数。
The variable function of vane Angle during loading is studied on the basic principle of dimensional analysis.
根据最佳装煤条件下的试验数据，提出了合理旋叶升角的范围；并从截煤效率考虑，对此范围进行了修正。
A-reasonable range of vane Angle is presented on the basis of experiment data in optimal loading condition, and the range is modified in view of cutting efficiency.
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