她的容貌白皙得毫无生气，帽子下两束平伙的头发是淡黄色的，可是缺乏光泽，这种淡黄头发通常总是有粉红面颊和白皙睫毛相伴随的。
Her complexion was insipidly fair, and the two smooth bands of hair beneath her cap were of that sunless flaxen hue which generally accompanies pink cheeks and white eyelashes.
利用平-凸透镜准直器作扩束耦合光学系统，采用低频斩光器实现光调制。
This sensor featuring plane-convex lens collimator for expanding beam and coupling, and a low frequency for light pulse modulation is introduced.
目的：评价X线平片对右室异常肌束的诊断价值及限度。
Objective: To evaluate the diagnostic value and limit of anomalous muscle bundle of the right ventricle on X ray plain film.
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