| 摘要 |
A sample handling plate 1 has wells 4 on the side of the surface 1 a thereof, and lightening portions 6 on the side of the reverse 1 b thereof, each of the wells 4 substantially having the same shape and volume as those of each of the lightening portions 6 so that the amount of shrinkage on the side of the surface 1 a is equal to that on the side of the reverse 1 b during cooling after the injection molding.
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