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51. | variation principle |
| 变分法原理 |
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52. | Change in supply vs.supply in quantity |
| 供给变动与供给且的变动 |
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53. | variation form |
| 变奏曲式 |
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54. | equivalent variation |
| 等值变差 |
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55. | variation coefficient |
| 变异[变差]系数 |
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56. | variation pitch |
| 调螺距 |
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57. | variation diagram |
| 变异图解;变差图;成分图 |
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58. | vertical variation |
| 铅垂变化 |
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59. | variation order |
| 工程变更定单 |
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60. | genotypic variation |
| 基因型变异 |
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