English translation for "primary source material"

原始生油物质

Example Sentences:

1.

Primary source materials and video resources are much more available than for the 40s covered by the last volume . hence , the number of words and stills has also increased , constituting harder editing and translation work 由于影片数量激增，编译更费力，而且原始文献及影像资料远较四十年代丰富，全卷书的字数及图片都相应增多。

Similar Words：

"primary sore" English translation, "primary sort key" English translation, "primary sound producers" English translation, "primary source" English translation, "primary source assembly" English translation, "primary source text" English translation, "primary sources" English translation, "primary space" English translation, "primary space allocation" English translation, "primary space target" English translation