The invention discloses a silicate scale clearing agent for a ternary combination flooding extraction well.

本发明公开了一种三元复合驱采出井硅酸盐垢清垢剂。

youdao

Mining of copper, cobalt, diamonds, gold, zinc and other metals, as well as petroleum extraction, once accounted for 75 percent of its GDP.

铜、钴、钻石、黄金、锌和其它资源的开采，以及石油开采，曾经占其GDP的75%。

youdao

Fingerprint identification module includes the preprocessing of fingerprint, feature extraction, the classing of fingerprint as well as matching, the establishment of fingerprint storehouse.

指纹识别模块包括指纹图像的预处理，特征提取，分类，匹配以及指纹库的建立。

youdao

The Government of Flanders and the Tides of Time partnership have provided more than USD 3 million to date to help States and site managers face the growing challenges of pollution largely posed by coastal development, unsustainable resource extraction as well as maritime transportation.

UNESCO: MEDIA SERVICES

We believe complexities associated with pipeline systems, gas storage and extraction, as well as declining production will drive natural gas prices up in the long-term.

FORBES: Andarko Fairly Valued If Nat Gas Prices Rise

The list included funds that invest in oil sands or "fracking" industries, as well as others that invest in uranium and silver extraction.

BBC: 'Dangerous' financial products named