CHNG 3: BIU DIN VT TH *** Sinh vin s dng gio trnh tm hiu ngha ca cc hnh v theo dn bi di y 3.1. Hnh chiu

3.1.1. Hnh chiu c bn (H3.1 3.6) 3.1.2. Hnh chiu ph (H3.7 - 3.9) 3.1.3. Hnh chiu ring phn (H3.10)

3.2. Hnh ct 3.2.1. Khi nim v hnh ct & mt ct (H3.12, 3.13) 3.2.2. Phn loi hnh ct

a) Theo v tr mt phng ct: - Hnh ct ng (H3.14) - Hnh ct bng (H3.15) - Hnh ct cnh (H3.16) - Hnh ct nghing (H3.17) b) Theo s lng mt phng ct: - Hnh ct n gin - Hnh ct phc tp: . Hnh ct bc (H3.18, 3.28) . Hnh ct xoay (H3.19) c) Ch thch - Hnh ct ring phn (H3.20, 3.25, 3.27) - Hnh chiu kt hp hnh ct (H3.21 3.23, 3.26) - Mt s trng hp ch : . Nt lin m trng vi ng tm (H3.24) . Mt phng ct dc tm, gn, thanh, trc (H3.32)

. 3.2.5. K hiu vt liu trn mt ct (H3.35-3.37) 3.3. Mt ct 3.3.1. Phn loi mt ct:

- Mt ct ri (H3.42, 3.44) - Mt ct chp (H3.43)

3.3.2. K hiu v nhng quy nh v mt ct (H3.45, 3.50) 3.4. Hnh trch (3.52 3.53) *** c k cc on: 3.5. V hnh chiu ca vt th 3.6. Ghi kch thc ca vt th 3.7. c bn v v v hnh chiu th ba

Hnh 3-50

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