The colorless platelets were filtered washed with cold methanol.是什么意思？

The colorless platelets were filtered washed with cold methanol.

将无色的小片状物过滤出来,用冷的甲醇洗涤.

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

colorless

adj. 无色的，苍白的，颜色黯淡的，无特色的；

例句
His complexion was colorless and he hadn't shaved.
他面无血色，胡子也没刮。

platelets

--

例句
The colorless platelets were filtered washed with cold methanol.
将无色的小片状物过滤出来,用冷的甲醇洗涤.

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

filtered

v. 透过( filter的过去式和过去分词 )，（光或声）渗入，缓行，（交通指示灯处的交通）仅可左转行驶；

例句
A cold, diffuse light filtered in through the skylight.
一道冰冷的光线透过天窗漫射进来。

washed

adj. 洗过的；v. 洗( wash的过去式和过去分词 )，洗涤，冲，（向着某一方向）流动；

例句
After 10 minutes the surplus material is washed away and any remaining deposit examined with ultra violet light.
10分钟后剩余的物质被冲洗掉，任何残留的沉淀物则会用紫外线进行检测。

with

prep. 和，跟，随着，关于，和…一致；

例句
A waiter entered with a tray...
侍者端着托盘进来了。

cold

adj. 寒冷的，冷淡的，无情的，失去知觉的，[艺]有冷感的，冷色的；n. 寒冷，感冒，伤风；adv. 完全地；

例句
It was a cold room, but it afforded a fine view of the Old City.
这房间虽然很冷，但是它能让人将古城的景致尽收眼底。

methanol

n. 甲醇；

例句
Methods: α - Bromo - 4 - benzyloxy acetophenone is synthesized with 4 - hydroxy acetophenone and bromonium as materials and methanol as solvent.
方法: 以甲醇为溶剂,以对羟基苯乙酮和溴为原料制备了α - 溴-4-苄氧苯基苯乙酮.