作业帮英语翻译The water levels were maintained constant by regulating
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/10 23:54:01
英语翻译
The water levels were maintained constant by regulating the water flow of the outlet
and inlet from the reservoir and fish tanks.The fish tank was always filled completely
with water so that no air was trapped inside the cover.Thus the fish could only obtain
air from the tube open to the air where it was forced to disturb a table tennis ball
whose movements were registered by means of a lever and a kymograph drum.Time
intervals between air breaths were measured from these recordings.Opercular fre-
quencies were counted at £ h intervals and the depth of breathing was assessed by
visual observation alone.
The fish was introduced into the tank 1 or 2 days before the start of an experiment.
On the completion of an experiment the water was changed to normal tap water and
the fish was kept in the tank until the start of another experiment on the following day.
The fish was fed at intervals of 3 or 4 days.Most observations were made at a tempera-
ture of 25 °C ± 1 °C.Total period of observation in a given experiment ranged from
5 to 11 h.Gas exchange
The water levels were maintained constant by regulating the water flow of the outlet
and inlet from the reservoir and fish tanks.The fish tank was always filled completely
with water so that no air was trapped inside the cover.Thus the fish could only obtain
air from the tube open to the air where it was forced to disturb a table tennis ball
whose movements were registered by means of a lever and a kymograph drum.Time
intervals between air breaths were measured from these recordings.Opercular fre-
quencies were counted at £ h intervals and the depth of breathing was assessed by
visual observation alone.
The fish was introduced into the tank 1 or 2 days before the start of an experiment.
On the completion of an experiment the water was changed to normal tap water and
the fish was kept in the tank until the start of another experiment on the following day.
The fish was fed at intervals of 3 or 4 days.Most observations were made at a tempera-
ture of 25 °C ± 1 °C.Total period of observation in a given experiment ranged from
5 to 11 h.Gas exchange
通过控制在水箱和鱼缸之间的水流进出,水平面得以保持稳定.由于鱼缸灌满了水,所以不会有空气,鱼也因此只能从通风管中获取空气.空气源可以打断一个受杠杆和鼓形描记器控制运动方向的乒乓球.空气的每一次流通时间都会从这些记录中计算得出.计算鱼鳃运动频率的时间单位为£h,而呼吸深度仅由肉眼观察得出.
实验开始前鱼被放在水箱中1天或2天的时间.在实验快结束的时候水被换成了自来水,同时鱼还是被安置在这个水箱里,直到第二天另一个实验开始.鱼每3天或4天喂食一次.大多数的实验观察是在24摄氏度到26摄氏度之间进行的.一次实验的总观察时间在5到11小时不等.
实验开始前鱼被放在水箱中1天或2天的时间.在实验快结束的时候水被换成了自来水,同时鱼还是被安置在这个水箱里,直到第二天另一个实验开始.鱼每3天或4天喂食一次.大多数的实验观察是在24摄氏度到26摄氏度之间进行的.一次实验的总观察时间在5到11小时不等.
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