0 the part of a piece of equipment, for example, a microscope, through which you look -- （显微镜等仪器的）（接）目镜
Drawings were made with the aid of a drawing tube, and measurements were made with calibrated eyepieces.
Normal viewing of stimulus, retina, electrodes, and fluorescent images were thus simultaneously possible through the microscope eyepieces.
All individuals that we caught with sweep nets were inspected with binocular eyepieces for t he occurrence of pollen.
For crustaceans, individual size was measured with a graduated eyepiece.
Using a graduated eyepiece, we measured the endocardial thickness in samples from three sites in the left ventricle and one from the right ventricle.
The length of the guard cells was also measured using a graduated eyepiece.
The endocardial thickness was measured using a graduated eyepiece at three sites for each histological section.
Observations and measurements were made under oil immersion at 1000i magnification using an eyepiece graticule.
