51吃瓜

???? ??? ???? ??? ?????????? ???????????, ???? ???? ??????? ???????? ??? ??? ?????????? ?????? ?? ???????? ??? ????? ?????????? ???????????, ????? ????? ???? ????? ??? ??????? ??? ??? ?? ????????? ??? ?????????. ???? ????????? ? ???? ??? ???????????? ???????? ??? ???????,

???????? ????, ????? ????? ??? ?????????, ??? ????? ???? ????????? ???? ???????? ??? ???????? ????? ???? ???? ????? ???? ?????????? ?????. ????? ???? ??? ??????? ?? ????? ??? ??? ????????? ??? ?? ????????, ???????? ??? ????? ? ????????, ??? ????? ??? ??????? ?? ?????? ?????? ?????????

????? ??????, ?????????? ??????, ???? ??? ?? ??? ??????????????, ???? ??? ?? ??? ?????????????, ??? ?? ?? ????? ????, ???? ??? ???? ????????? ????? ??????

ukuze ??????????? ????????? ???????, ??? ?? необходимо ?? ?????????? ?? функции ??? ?? ?????, ????? ?????????? ????????? ??? ??? ??????, ??? ?? ????????????????? ???? ??? ????, ????? ?? ?????? ????????? ???????????? ??????????? ??? ????

?????? ??? ????????? ??? ?????, ????? ??? ????? ??????????? ????????? ???? ????????? ?????? ??? ??? ???? ??? ?? ???????????

?????????? ??? ???????? ??????? ??????????????? ??????????????? ?????????????????????, ?? ?? ?????? ????????? ???????????

????????? ???? ?????????????? ?????????: 1. ???????? ????????? ????? ???? ?????????? ?????

2. ?????????? ?????? ?? ?? ?????????? ???????????? ?????????

3. ???????? ???? ????? ?????? ??? ?????? ???? measurement

4. ???? ????????? ?? ????????????????

5. ?????ider? ??????????????

6. ???????????? ????????????? ????? ????????? ????? ???? ?????

????????? ????? ??????????? ????????: ?????????????? ???? ???? ????????, ???????? ???? ???? ????????, ??? ????????? ???? ???????? ???????????

?? ?????? ??????? ?? ???? ????? ??????? ????? ?????: 000

1. ????? ??? ???? ?????? ?????? ??? ??? ????, ????? ??????, ?????, ???????, ?????????, ????, ????, ?????????? ???????, ???, ????

2. ????????? ?? ????????? ??? ??????????? ???? ???? ????, ???? ??? ??? ??? ???????? ??????? (3F ?????????, kwalite? ????????? ???????). ???????? ????? ??? ??????? ?????????? ??? ??? ???????????????????? ????????????, ??? ??? ??? ???? ????????????? ??? ??? ???? ??? ??????????.

3. ????????????? ??? ?? ?????? ??? ?? ???????? (????????????, ???????????, ??????, ????.) ?? ????????? ??? ??????????? ?????? ??? ????? ???????? ????????, ????? ??? ????? ??????? ???? ?? ????????.

4. ??? ?????. ??? ???????? ???? ???? ?????????? ?? ????, ??? ??????; ??? ???????? ??????, ?? ???? ???? ???? ?????? ????? ????????????????? ??? ?????? ?????? ????? ????????????????? ????????? ??? ??? ??? ??????????????????? ??? ????????? ??? reduce ??? ???????? ??? ??????.

5

?????? ??? ???? ???? ????????????? ??????????? ???? ??? CAD ??????????? ???????????????????????

Definition, annotation, and interpretation of various positional tolerances - truly comprehensive

Introduction to Calculation and Application of Size Chain: When designing and annotating dimensions in products, it is necessary to consider

??? ??????????? ????? ????? ????????????????????: 10 (-0.2,+0.2) 9.8 (0,+0.4) 10.2 (0, -0.4)

???????????

??????????????? ????????: ???? ??? ?? ??? ?????????????? ?????????? 4-10 ??? 410 ??? ???????

??? ???? ?? ?? ????? ???? ??? ?????????? ?? ?????. ??? ???????? ???????? ???? ???????? ??? ?????????? ???? ????? ?? ??? ??? ??? ?? ?????? Basic drawing annotations

??????????????? ????: ??????????? ????????????? ??? ??? ??????????? ??? ??????????? ????? ???? ?????????? ????????