初步提纯 预先精炼

prerefining  detail>>

初步提纯

preliminary purification  detail>>

提纯；精炼

epuration  detail>>

初步火法精炼

preliminary fire refining  detail>>

预先火法精炼

preliminary fire refining  detail>>

区熔提纯 区域精炼

zone-refine  detail>>

初步的；初级的；预先的

preliminary  detail>>

预先调查, 初步调查, 侦查

preliminary investigation  detail>>

预先形成；预先决定；初步加工；预先成型

preform  detail>>

纯预测

pure predication  detail>>

纯预算

net budget  detail>>

提纯

purification; purify; refine; refinement ◇提纯复壮 purification and rejuvenation; 提纯剂 purificant; 提...  detail>>

初步

(开始阶段的; 不是完备的) initial; first step; preliminary; tentative  短语和例子   初步繁荣昌盛的社会主义国...  detail>>

精炼

1.(提炼; 除去杂质) refine; purify affinage; fining; softening; exaltation; fluxing; improving; refining &n...  detail>>

预先

in advance; beforehand  短语和例子   预先打好行李 be beforehand with one's packing; 预先感谢 th...  detail>>

最佳纯预测器

optimum pure predictor  detail>>

逐步提高

escalate  detail>>

是进一步提高

use plain language  detail>>