The M3 Lee and Grant tanks, mounting a 75mm fixed gun, had a high silhouette and was difficult to operate in combat with the heavy German PZKPFW Mark IV and Tiger panzers.

M3‘李’式和‘格兰特’式坦克，装备有75毫米固定主炮，有高大的侧面轮廓，在战斗行动中难以与德国重型的‘马克’IV型坦克和虎式坦克相匹敌。

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Her decisions also involve which of her Canon Mark IV cameras to shoot with.

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The Buhl Industries Mark IV Opus Opaque Overhead Projector.

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If I didn't have a Mark 4 (Canon EOS-1D Mark IV capable of shooting up to 10 frames per second, Ed) or some other really fast camera, I wouldn't have these pictures.

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