英语翻译The water levels were maintained constant by regulating the water flow of the outletand inlet from the reservoir and fish tanks.The fish tank was always filled completelywith water so that no air was trapped inside the cover.Thus the fish

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英语翻译The water levels were maintained constant by regulating the water flow of the outletand inlet from the reservoir and fish tanks.The fish tank was always filled completelywith water so that no air was trapped inside the cover.Thus the fish
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

英语翻译The water levels were maintained constant by regulating the water flow of the outletand inlet from the reservoir and fish tanks.The fish tank was always filled completelywith water so that no air was trapped inside the cover.Thus the fish
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.

英语翻译ocean levels will rise,and much of what is now the coast of the united sates will be under water. 英语翻译Another potential source of increasedrecharge is the capture of recharge that wasoriginally rejected because water levels were ator near land surface.As the water table declinesin response to pumping,a storage capacity forinfiltration of 英语翻译Another potential source of increasedrecharge is the capture of recharge that wasoriginally rejected because water levels were ator near land surface.As the water table declinesin response to pumping,a storage capacity forinfiltration of 英语翻译The water levels were maintained constant by regulating the water flow of the outletand inlet from the reservoir and fish tanks.The fish tank was always filled completelywith water so that no air was trapped inside the cover.Thus the fish 英语翻译Mules and horses on land used ropes to pulled barges through the canal.Eighty-three locks raised the water levels by more than one hundred seventy meters from the Hudson River to Lake Erie. 英语翻译1、DualTabs sustained release bi-layer formula also eliminates the need to take vitamins more than twice daily to achieve peak blood levels of water soluble vitamins over a prolonged period of time.2、DualTabs eliminate the interaction 英语翻译Japanese officials' concerns over food contamination expanded beyond the country's borders Tuesday as tests detected radiation in ocean water offshore.Plant operator Tokyo Electric Power Co.said that high levels of radioactive substances 英语翻译A change in the water chemistry due to surface water contamination can negatively affect all levels of an ecosystem.It can impact the health of lower food chain organisms and,consequently,the availability of the food supply up through the 英语翻译water和the之间英语翻译During the first part of the 2008 growing season,rainfall totals were below normal,and irrigation was required to keep soil water levels at an adequate level.This corresponded to the observed low soil water potential values from May to Ju 英语翻译Responses at lower levels (biochemical biomarkers) can aid in the identification of the mechanisms underlying the effects at higher levels of biological organization. 英语翻译Operating Ranges and Response TimesThe following table shows the radiation levels the Digilert 100 measures in each mode and how they are displayed.In some modes,when radiation levels increase over certain preset levels,the Digilert 100 u 英语翻译If learners are interested and working hard,then the energy levels are high; if learners are bored or tired,then the energy levels are low. levels 英语翻译The leaders of different levels mustn't favor some people more than others. 英语翻译These diagrams are obtained by cuts of the ternary Fe-C-Si diagram at different silicon levels.这句怎么翻译,特别是silicon levels,急,关键是silicon levels 英语翻译 existing levels,PROPOSED LEVELS,INVERT LEVELSexisting levelsPROPOSED LEVELSINVERT LEVELS是什么意思工程图上的英语翻译Although 174 nations ratified the admittedly flawed Kyoto accords to reduce carbon levels,the US walked away from it.