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20
eTrex HC
TracBack:
1.
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TracBack
,
.
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(
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,
.
.
4.
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.
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:
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.
2.
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,
.
eTrex
50
,
250
.
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20
eTrex HC
TracBack:
1.
“
.
”
TracBack
,
.
.
2.
,
TracBack.
3.
(
HCx
),
,
.
.
4.
.
.
5.
>
.
:
1.
,
,
.
2.
.
,
.
eTrex
50
,
250
.
“
”
.
MapSource
.
:
1.
.
2.
>
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.
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.
3.
.
4.
,
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