Diameter pitch threads number and range D. p.
径节螺纹种数与范围。
In P-Ink, the elements of the crystals are tiny beads of silica, 200 nanometres in diameter.
在P - Ink里，晶体的成分是直径为200纳米的微型硅珠。
High concentration of oestradiol had a significant stimulation (P<0. 01) on oocyte diameter increase at the previtellogenesis stage.
高浓度雌二醇对卵黄发生前期卵母细胞卵径增大也有明显刺激作用（P＜0．01）；
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