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)=4(km) 12
VV 9mm 25 4 25 9 4 [VV]=76 (18)
Ðò ºÅ 1 2 3 4 5 6 ¹Û ²â ÖµL 256.565 256.563 256.570 256.573 256.571 256.566 L=256.568 V -3mm -5 +2 +5 +3 -2 [V]=0 ¾«¶ÈÆÀ¶¨£º¹Û²âÖµÖÐÎó²î£º£í=¡À3.9mm ËãÊõƽ¾ùÖµÖÐÎó²î£ºM=¡À1.6mm (19)½â: (a) m§¡/DA=1/3521 mB/DB=1/4010
(b)¡ÆD= DA + DB ¦¤D= DA - DB
m¡Æ2=m§¡2+ m¦¢2 m¡Æ =¡À0.05m m¦¤D =¡À0.05m
Á½¶Î¾àÀëÖ®ºÍÓëÖ®²îÖÐÎó²îµÄÏà¶ÔÖÐÎó²î¾ùΪ m¡Æ/(D§¡+ DB)=1/5223
£¨20£© mÖÕ=83m¦Â=835=¡À14.1¡å
n¡Ü(mÖÕ/m¦Â)2=(18/5) 2 =12.9 ×î¶àÉè13¸öתÕÛ½Ç
(21)M=
mn=
95=¡À4.0¡å n¡Ý(
m29)=()2 =6.6 M3.5n=7²â»Ø
(22)h=100.08tg15¡ã30¡ä00¡å+1.48-1.00=28.23Ã× mh2=(tg¦Á3mD)2+(D3sec2¦Á3m¦Á/¦Ñ¡å) 2+mi2+mv2 =(tg15¡ã30¡ä00¡å30.05) 2+
(100.083sec215¡ã30¡ä00¡å320/206265) 2+(0.01) 2 +(0.01) 2
=0.000192+0.0001092+0.0001+0.0001=0.000501m 2
mh =¡À0.022m (23) (a)f¦Â=¦²¦Â-540¡ã
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