在每年干旱的几个月里，有一条简易渡轮往返于塞拉利昂东南的河流两岸。人们通过开过槽并固定在导索上的木棒推进能承载车辆的浮筏。
In the dry months of the year a simple ferry crosses a river in southeastern Sierra Leone; a car-carrying pontoon propelled by men with notched wooden sticks that lock to the guiding cable.
粉状活性炭应用于气浮工艺中能发挥吸附和提供絮聚中心的协同作用，提高工艺效率。
The powder active carbon is applied in the air-float technology to enhance its efficiency by playing the role of absorption and providing coordination to flocculent concentration.
在卫星中继站和遥测站中采用太阳能电池板充电(浮充)、蓄电池蓄电的电源系统，能保证连续、稳定的供电。
If charged by solar panels and batteries, continuing and stable power supply for satellite data relays and telemetric stations can be guaranteed.
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