grainedadj.有纹理的；有颗粒的；粗糙的动词grain的过去式和过去分词.grainn.谷物；谷类；微量；颗粒；纹理；格令v.形成(颗粒)；(用谷物)喂养grain boundary layer晶界层grain shovel carrier铲粮车grain-dull illness纹枯病grain per unit yield粮食单产grain bulk resistance粮层阻力Grain weight of plant株粒重grain fineness number晶粒度(读数)； 平均粒度； (砂)细度Grain food production粮食生产grain tax on the land田赋征实grain growth exponent晶粒生长指数

1. A self-fastening method is introduced by which a cleat-shaped seed crystal is fixed in the swallow-tailed groove.
   本文介绍一种在提拉法中使用的晶种劈形自紧固方法。
2. But ever finer control of the temperature gradient around the seed is eliminating the telltale imperfections that jewelers could once detect with a magnifying glass.
   然而，一种能更精细控制晶种周围温度梯度的方法，正逐渐去除这种遮掩不了的瑕疵。