pinhead size

基本解释

The LED probe consists of 144 tiny pinhead-size diodes and is 9-inches long and about one-half-inch in diameter.
这种LED探针由144个针头大小的二极管组成，长9英寸，直径大约1个半英寸。小球使得光源均匀分布。
He mixed ground-up rock with water and put 4)pinhead-size bits of asparagus and potato plants into the mixture.In a few weeks the plants grew a couple of inches tall.
他混合磨碎的石头与水，将针尖大小的芦笋与马铃薯放入其中，数周后就长到两三高。
The Chemistry and Camera instrument, seen above before a recent test firing at Los Alamos National Lab in New Mexico, uses a pulsed laser beam to vaporize a pinhead-size piece of material.
图片上是这件化学分析及摄像仪器在新墨西哥州洛斯阿拉莫斯国家实验室进行点火测试前拍摄的。

Goodfellow's unit has so miniaturized the mass screening of such compounds that machines now replicate the countless experiments in pinhead-size droplets--1, 536 tiny wells on envelope-size plates--a process that formerly took humans untold man-hours.
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