The compatibility of ir smoke interfering material in shell .
红外烟幕干扰材料在弹中的相容性。
The chopper 's got nothing on ir but us .
直升机的红外线除了我们什么都没检测到。
Spitzer 's ir instruments can capture the heat radiation put off by dust particles in the ring which starts some 3.7 million miles from saturn and extends outward another 7.4 million miles .