粒重与其他籽粒性状均呈显著正相关，而涉及籽粒品质的容重与粒宽、粒厚呈显著负相关。
Significant negative associations existed between grain width, thickness and grain density, which could be associated with grain quality.
发现不同周期中相同条件下腐蚀得到的多孔硅层，其层厚随周期的不同而不同，从而限制了多孔硅发光峰半宽的缩小。
It is found that there is a inhomogenity of thickness of different layers in different period which was etched under the same condition.
金属表层大约厚 20 微米（一米的一百万分之一），而当时的胶粒宽达 10-15 微米——厚的足以使金属表层散裂，这样反而弊大于利。
Surface coatings tend to be about 20 microns (millionths of a metre) thick. The capsules were 10-15 microns across—large enough to disrupt the coatings, and thus do more harm than good.
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