TQGD series vertical low rotation speed centrifugal pump is applicable for occasions with low requirements for environment noise, air-conditioning circulation, etc.
TQGD系列立式低转速离心泵，试压泵适用于环境噪声要求很低的场合及空调循环等。
Calculates the energy consumption and economic index of the full fresh air system and partial circulation air conditioning system.
计算了全新风系统和部分循环风系统的能耗和经济指标。
GVA utilized the high elevation of the villas, generous space and air circulation in their design so that the natural sea breezes would reduce the need to use air conditioning.
GVA利用别墅的高海拔地理优势，宽阔的空间以及空气的自然流通减少了空调的使用。
GVA utilized the high elevation of the villas, generous space and air circulation in their design so that the natural sea breezes would reduce the need to use air conditioning.
GVA利用别墅的高海拔地理优势，宽阔的空间以及空气的自然流通减少了空调的使用。
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