涡流二极管泵输送设备是一种新型的用于高危物料输送的无运动部件的免维修输送系统。
Vortex diodes pump is a new-type maintenance-free equipment with no moving parts for pumping hazardous liquids.
阐述了国内外免清洗焊剂和无铅焊锡膏的研究现状及其在电子组装技术中的应用前景。
The research on and the application in the electronic assembly technology of the two materials are reviewed.
和灭汽车数量的日害删长，城市的交通状况、泊车场的管理等出无否躲免蒙到己们沉视。
With the growing number of cars, People also pay more attention on city's traffic conditions, the management of car parks and so on.
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