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20171.2.2B0.53.4.5.125601.31iiA12iB12iC2iD2i2.1,2,4240xxxm1A1,3B1,0C1,3D1,53.73812A1B3C5D94.1&A90B63C42D365.xy2330233030xyxyy2zxyA15B9C1D96.3411A12B18C24D367.22&ABCD8.1aSA2B3C4D59.C:22221xyab0a0b2224xy2CA2B3C2D23310.111CCC12021CCC111CA32B155C105D3311.2x21`()(1)xfxxaxe()fxA.1B.32eC.35eD.112.ABC2PABC()PAPBPCA.2B.32C.43D.1452013.0.02100D14.23sin3cos4fxxx0,2x15.nannS33a410S11nkkS16.FC:28yxCFyFF7017~2122236017.12ABC,,ABC,,abc,2sin()8sin2BAC(1)cosB(2)6ac,ABC2,.b18.12|100kg1A50kg,50kg,A299%50kg50kg30.01P0.0500.0100.001k3.8416.63510.82819.12P-ABCDPADABCDo1,90,2ABBCADBADABCEPD.1//CEPAB2MPCBMABCDo45M-AB-D20.12OMC2212xyMxNP2NPNM.(1)P(2)Qx=-31OPPQ.POQlCF.21.123()ln,fxaxaxxx()0fx.1a2()fx0x230()2efx.10222322.[4-4]10xOyx1Ccos41M1CPOM||||16OMOP,P2C2A(2,)3B2COAB23.[4-5]10330,0,2abab133()()4abab22ab20171.D2.C3.B4.B5.A6.D7.D8.B9.A10.C11.A12.B13.1.9614.115.2n1n16.617.12sin8sin2ABCB217cosB-32cosB+15=015cosB=cosB171=2158cosBsinB1717=14asin217ABCScBac17=22ABCSac&a6cb=218.1B50kgC50kgPAPBCPBPC50kgPB0.6250kgPC0.66A0.620.660.4092250kg50kg6238346615.7056.63599%350kg0.0040.0200.04450.340.555kg0.5-0.3450+2.35kg0.068519.1PAFEFBFEPDEFAD,12EFAD=,90BADABCBCAD12BCADEFBCBCEFCEBFBFPABCEPABCEPAB2BAAD,AABxABA-xyz,(000)A(100)B(110)C(013)P(103)PC,(100)ABBMABCD45(00)n1ABCD0cos,sin45BMn222z22(x1)yzx-12+y2-z2=0MPC|,PMPCxxyy22=1+=1-22=1()=166zz22M261-,122261-,122AM000,,xyzm=ABMm=0-62.cos105mnm,nmnM-AB-D10520.1Px,y,Mx0,y0,Nx0,0,00,,0,NPxxyNMy2NPNM002=,2xxyyMx0,y0C22122xyP222xy2F-1,0.Q-3t,P(m,n),3,1,,33tOQ,PFmnOQPFmtn1OPPQ22-31mmtnn122+=2mn3+3m-tn=00OQPFOQPF..POQPOQlCF.21.1fx0+gx=ax-a-lnxfx=xgx,fx00gx11=00,1=0,,1=1,1ggxg'g'xag'aaxa=111g'x=x.0x10,g'xgxx1g'x0gx.x=1gx1=0gxga=1212ln,'()22lnfxxxxxfxxx122ln,'()2hxxxhxx10,2x'0hx1,+2x'0hxhx10,21,+2210,0,102hehhhx10,2x01,+2100,xx0hx0,1xx0hx1,+x0hx.'fxhxx=x0f(x)000000'0ln2(1),=(1)fxxxfxxx00,1x01'4fxx=x0f(x)0,1110,1,'0efe2-202efx22.1P0M11016OMOP=2Ccos=402C22240xyx2B0BB,cos=2=4BOA,OAB=-12S2+3OAB2+323.123+8aba+b2.