dark fringe

Gone was LeBlanc 's trademark dark foppish fringe , replaced by a greying head of salt-and-pepper hair .

雷布朗标志性的公子哥黑刘海一去而不返，取而代之的是一头变白的杂灰色。

The 42-year-old one-time heart-throb cut a distinctly portly figure . Gone was LeBlanc 's trademark dark foppish fringe , replaced by a greying head of salt-and-pepper hair .

当年的大众情人如今已经42岁，身体发福。当年那一缕纨绔子弟标志的黑色刘海，如今也已被满头花白头发替代。

The distance between adjacent dark fringes of diffraction fringe of wire is determined at low and high temperature by CCD detector , the value of high temperature is measured by pyrophotometer , and the coefficient of linear expansion of wire is calculated .

利用CCD探测器分别测出常温和高温下金属丝衍射花样相邻暗纹的间距，用光学高温计测出加热时的温度值，从而求出线膨胀系数。