3654
内容介绍
适用于数控新手入门者，和数控行业从业者。
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167 03:16
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102 02:26
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86 02:05
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79 02:46
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72 02:29
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73 02:33
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67 01:46
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66 02:33
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60 02:33
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62 02:57
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60 01:40
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59 02:53
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54 02:39
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55 02:36
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50 02:11
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51 02:16
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49 01:45
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50 01:59
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46 01:59
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45 02:41
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