Petroleum engineers plan and manage the extraction of oil.石油工程师规划并管理石油的提炼。The purpose of oil refinery is to refine crude petroleum.炼油厂的主要工作是提炼原油.They refined crude oil into various petroleum products.他们将原油提炼成各种石油产品....
They refined crude oil into various petroleum products.他们将原油提炼成各种石油产品.ABout 90 % of the waxes in commerce are recovered by dewaxing petroleum.工业用蜡中约有90%是由石油中回收的.The petroleum exploration geologist working with subsurface...
...calfskin boots.小牛皮靴He had large fat feet cased in soft calfskin boots.肥大的脚塞在一双软皮靴里.The book cover is made of fine calfskin leather.书的封面用精致的小牛皮制成.Materials: Richly finished soft calfskin leather that smells DIVINE!材料: ...
The invention discloses a agglomerating inhibiting agent, preparing method and application thereof.本发明公开了一种结焦抑制剂及其制备方法和应用.It also needs effectual in spiriting and inhibiting system inside.同时也需要内部有效的激励和约束机制.Inhibiting the...