In particular, where fluids are used, machinery must be designed and constructed to prevent risks due to filling, use, recovery or draining.
特别是在使用液体材料时，机械的设计与制造必须防止因为填充、使用、回收或排放而产生风险。
2
The research scientist is convinced that many possible applications exist, including in machinery manufacture for instance to keep hydraulic fluids free of microbes.