由于渔具不同的选择性和多鱼种鱼类共栖，人们在对目标种类进行捕捞时，不可避免地产生副渔获物及其抛弃。
Because of the selectivity of fishing gear and mixed distribution of fish species, there will be inevitably by-catches and discards when people catch the target species.
因为它们的频宽很窄，CF 信号只能描绘目标的存在，而对于一些种类的蝙蝠来说，CF 信号还能描述目标相对于蝙蝠的运动。
Because of their narrow bandwidth, CF signals portray only the target's presence and, in the case of some bat species, its motion relative to the bat's.
这种类型的压力可以帮助人们高效地工作以实现他们的目标。
This type of stress can help people work efficiently to meet their goals.
应用推荐