詹天佑修铁路时,修了居庸关的铁路,是从两边同时向中间凿进,减少时间.可怎么确保准确无误接通呢?知道的好的追加分,加多少分你说.很严谨的,请别乱写.
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/30 06:03:32
x}YrHVT_bEdeeEummRI(")M$J${Ʉ;B"_[")p_sWpWwoonDbI1Ks)/剾fĶnW4{i^\viTIL˸"4ѢJ;ݱkTdڝLdE/EN_wkNO{06m/7d!ҏj&o?l5-8'8qԶrG4Ĩ2/jT:YlBM.Dq .[/GJ|I<@4!8OO2*3+1spE1`||D>LHHӢp+'t^LK{;߆?ًRڶ.2}Xrra//1}c7T 62:G4\}]xlXs]qYMYMnq1#)p04 4*,రDӭ^Nd
cVlΠ$,SNbm̓
~mr23DzmccdGw{ѩK1hཾ{ /XqP̍Ƹ;nQÝ*Y©!S xDIxX^j,SV9{`72{}ǮQ;*5loDÓ[]a9YTNl[vuWUyËhFzfr[Dkj">٦9Hpsyr' 犕c
67I.z˝x-
ËL/Uv[Vd;2+%*,Bʿ4e4,Cxkd(2!7O\&gf6D˭ji|]P$o2Nǘ汿
w$^Ao^|#/"ђ
ٽ˓Gs-^k7 ,FE"' >Ԓە>+h^fоBkD>F{+c=]:^TLnş
mo'>ܝtW'\_; -dü N:'wbt_s^;zZ4DE/ee%JuLb
^_;VVW[-ڴh:>/QM0Ѹ["}/yӑs6 9l0\?]씙
zi3G({=t' K`¾t)XMRL|%ttއbӂkg{N
uFʜe:eU&|;Ͽ~R/NpQs{t.Sbs#`6
ۡ`*!yu,&/1h:G (Zy#xz9G2)xfW:Q ?8b8qG˼5$w&
v]Hi- T 0wsUs/ӼsVx+\[TƂlS It^U-v k!tL G ]pwnq'qpJ~sZWGrh">wWa=jqw6+vqW܆x1
fc/snfE*n3
[>am;5Db"p%\D7Q
RW_1D!7 ܣӎrckQo8gKn,ZVEr9^|K NШu'
E݉lS
|W]i`S$Vcɜ~Esα}
Nsy$P]@p[@Z A;Dqu)jr'9&5Xk&S|7M<oiX^ai){%7橞?p7hߠFxsh~(67Y1l#-#ho+#lDH&L8I`_#`Cú}jf*w2:$7U2oe^ޔ4S:}Cq$Gx=Rb H-ppG_v)7;kدw6s67!/;K Ik\psv'3=ꭂSz4cQ+_Bs6Չ\>i5jih
zgoڦ4YqR-,l~9͔赞0:釗Rp`SWO1wCz
*GF/ac.P"P1SXp'I|/F>M=NaD[r\.MȖΨ2sg03ݱ.ΥܝTOYg5S ~O[ߙc5(I~OEip*wNs+>| zK ?'[G9q-ֻW@T4O R/y[q`hE>w"&Q/@x;6gHyp|*q(
V<~w60u9Ԯk逆 X?dClVO
1֥/H,WKǯ
k#_?#[:xObӬ @.혳k~(}q;ηo dd1Cʋx4A\05R1mic.Hϡ'T$Y`(#OjgT 0lJO}=9)c(o
J]hޘs`քT+2^l'2MB͎$gdaXXi@[/S^mYm 6އ,h}NF5
j#}<(H#?6+{_LS؛a;{C(0
h6$pI P"2S3FO<]]
z -X0ʼn` dv#}DEdJEk0&| E-[k{ljN!M
0l7m>_R
L
>}dzHO9SWE(
Vz;RȹAmT7q\1^[%>F՛;B2vvwO@D_䟱d⋎֨q\UH tv"oguniP
T"b/6+q\B]N:=
r1ʠGxS7]=$SD/_PEcT
$xd~xgE#2&2ȫ/}շwm}rW,TkZ(|<
Zc9~H>fau<Wb2v(V;1fC0KW DnlF,ӗ *v
x%ؔ, VTU`b^3%G7>r`rhʟ F 0wfH/;K
|ſkEpo\ X;t0ź)X %-EU;RčZ 638oRQ6EtĆ[ܛGxihs?vqc/^1o^bpl0/OJ]i*.+Z xS^d0ޒ (q{ɤ̯z
2DJ2D^L}TUUn`L6?mLb"Ƭ!;sh`AFnD.҄Cu/te2Q) j7tUɗqwj&"V{Q[1gENz2U7elgi٫]+?T !A)xڷvN2iމx HNXA]ST
;Yqe60o'0ܽVJwo%^fL
|",{sya
xs&sgH@=1Dnq@?[fv߃8#cC_o2/[p JUSYDa