坐标清单中字母m是什么意思

UUNITS = MILLIMETERS
                 J10     96.6000     33.5000       270              POWERJACK3
                  J9     86.1952     25.6420         0  m     SMARTCARD-S1-806
                 U11     43.2400     41.7800         0  m               TSOP48
                 C96     18.1100      4.7000        90                     5X7
                  D5     16.0800      5.1300         0                      M4
                  J8     10.8000     21.5000        90               USB-PLUGA
                 U14     23.3200      5.2600         0                 EQFP144
                 R60     23.0500      3.7600         0                  RC0603
                  J7     24.1000     -2.6000         0              DVBC-TUNER
                 C13     21.7500     27.5100       180                  CC0805
                 C12     42.3400      5.5800       180  m               CC0805

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Yes！

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