Word: mm
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...mm. field howitzer, truck-drawn, is identical except that it has a split-trail carriage and cannot be broken down into pack loads. These 75-mm.s fire a 15-lb. shell better than 5.3 miles...
Mass X Rays. Small-size (4-by-5-in. and 35-mm.) X rays were the main subject of the Mississippi Valley Conference on Tuberculosis. These films, in use about two years and used on recruits by the Army, cut the cost of X rays1? to 6? apiece (price of regular 14-by-17 film: 65?), and "make possible mobile X-ray units which can examine 50,000 people a year. Drs. G. A. Hedberg and E. J. Terrill of Duluth told of one unit which had surveyed an already carefully examined county and found active tuberculosis...
...pack howitzer is the principal 75-mm. weapon. *Broken down, it is moved on the backs of mules. It is also the organic weapon for paratroop field artillery units. Dropped in seven loads, the 75-mm. can reach action seven minutes after crew and parts leave the plane...
...105s. The "all-purpose weapon" Of the war is a 105-mm. howitzer, which has superseded the World War I 75-mm. as an organic light artillery weapon. In U.S. infantry divisions, three artillery battalions are each equipped with twelve of these weapons. The 105-mm. howitzer fires a 33-lb. projectile approximately 6.9 miles...
Mounted on a self-propelled M-7 motor carriage, this piece became famous in Egypt as "the Priest," the antitank weapon with the pulpitlike machine-gun mount which broke Rommel's desert line. Another, a modified 105-mm. with a shorter muzzle and mounted on the same carriage as the 75-mm., is used by airborne artillery and infantry heavy weapons units...