By controlling ship floating state, the rate and ability of loading or discharging ballast water can be enhanced to ensure the adaptation of ballast water to cargo operation during the cargo loading.
通过控制船舶的浮态提高船舶压载水的速率及排放能力，保证货物装载过程中压载水与货物操作相适应。
Efforts are also being made to prevent the spread of invasive species through the taking on and discharging of ships' ballast water.
人们也在努力阻止入侵性物种通过船舶压舱水的装载和排放而扩散。
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