Assertion: artillery's gun | /r/DefinedAs | being only capable
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Source sentences:
text: Current U.S. military doctrine defines howitzers as any cannon artillery capable of both high-angle (45° to 90° elevation) and low-angle (0° to 45° elevation) fire; guns are defined as being only capable of low-angle fire (0° to 45° elevation), and mortars are defined as being only capable of high-angle fire (45° to 90° elevation).
text: Current U.S. military doctrine defines howitzers as any cannon artillery capable of both high-angle (45° to 90° elevation) and low-angle (0° to 45° elevation) fire; guns are defined as being only capable of low-angle fire (0° to 45° elevation), and mortars are defined as being only capable of high-angle fire (45° to 90° elevation).