较大颗粒物的英文：
n. coarser particle

coarser是什么意思：
[ coarse ]的形容词比较级;[ coarsely ]的形容词比较级;[ coarseness ]的形容词比较级

Earthenware： Pottery that has been fired at low heat and is slightly more porous and coarser than stoneware and porcelain.
陶器:一种烧成温度未到玻化点的陶器，渗水性比石陶器和瓷器稍大，也较粗糙。

"and sometimes, also, by a coarser expression, that fell upon the sufferer's defenceless breast like a rough blow upon an ulcerated wound."
有时她们则明目张长胆地攻汗她那毫无防御的心灵,犹如在渍烂的创口上再重重地一击。

particle是什么意思：
n. 微粒；颗粒；极小量；粒子，质点；小品词

swarm of particles
粒子群集

Magnetic particle testing/magnetic particle examination
磁粉检测

The particles will be deposited on horizontal surface.
这些粒子将沉淀在水平面上。

With methyl methacrylate the particle diameter increases linearly with conversion indicating particle aggregation
采用甲基丙烯酸甲酯时，粒子直径随转化率呈直线增大，这就表明粒子发生了聚集。

One case is that of tiny dust particles or colloidal particles suspended in a fluid
一种就是微小的灰尘粒子或悬浮在液体中的胶粒。