Flame - retardant asphalts with different flame - retardant ( H , L , W ) were prepared.是什么意思？

Flame - retardant asphalts with different flame - retardant ( H , L , W ) were prepared.

选用三种阻燃剂 分别制备 了不同的阻燃沥青.

flame

n. 火焰，热情，激情，〈俚〉爱人，情人，激动；vi. 燃烧，发出火焰，面红，闪光；vt. 烧，激起，激怒；

例句
The custom of lighting the Olympic flame goes back centuries...
点燃奥林匹克圣火的习俗可以追溯到几个世纪前。

retardant

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例句
The effects of filler fiber and flame retardant on ablative performance of EPDM insulation are studied.
研究了填充纤维、阻燃剂种类及用量对EPDM绝热层耐烧蚀性能的影响.

asphalts

v. 铺沥青于，铺柏油于( asphalt的第三人称单数 )；

例句
Flame - retardant asphalts with different flame - retardant ( H , L , W ) were prepared.
选用三种阻燃剂 分别制备 了不同的阻燃沥青.

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。

different

adj. 不同的，各式各样的，个别的，不平常；

例句
Different schools teach different types of syllabus, from the highly academic to the broadly vocational.
不同的学校有不同的教学计划，从高度学术的到普通职业教育的，不一而足。

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。

prepared

adj. 事先准备好的，愿意的，期望的；adv. 事先准备好地，愿意地，期望地；v. 准备( prepare的过去式和过去分词)，预备（饭菜），配备，使（自己）有准备；

例句
The officers and crew prepared to abandon ship in an orderly fashion.
全体船员秩序井然地准备弃船。