In 1959 Guo Wenkui like China lead zinc deposit by cause for the endogenous and exogenous two categories. Endogenous deposits are divided into 8 constructions according to the order in which they are formed. Among them, the c…

Deng long Shuai and instruments Ming et al., Application of ICP-MS, AFM and XPS analysis of the dissolved solution while stirring the same and different pH values in an argon and oxygen environment different mechanical brass ore characteristics and surface p…

Smoke alarm is an alarm installation to prevent fire. When the concentration of smoke in the house reaches the standard, the smoke alarm will alarm. When the concentration of smoke in oxygen is restored to normal, the alarm is suspended. It can promptly remind the students to…

According to formula (1), m=Sv _D t=Sk _D ΔCt=k _D S(C ₀ -C _i )t (1)

According to relevant factors, several mass transfer rate equations can be listed one by one.

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At the end of the year, the heart is like an arrow, and the homecoming is in a hurry. When others care about your flying height, we care about your tiredness. One year's growth and gain, moved and joyful, only want to share with the most intimate family. Home is the harbor of the min…

25. edycja AUTOTECH International Auto Aftermarket Trade Show zakończyła się sukcesem, z entuzjastyczną reakcją kupców z Bliskiego Wschodu i Afryki Północnej oraz międzynarodowych wystawców.

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Cadmium A chemical element, chemical symbol Cd, atomic number 48, atomic weight 112.411, belonging to the periodic system IIB. In 1817, F. Strommel of Germany discovered cadmium from zinc carbonate. KSL Herman and JCH Rolf al…

German Bosch Automotive Diesel Systems Co., Ltd. China's Qingdao production base officially broke ground in the National Hi-tech Industrial Development Zone in Qingdao on the 30th. This is the second production base of the German company in China.

According to the proje…

The pyrite cinder is pretreated by screening before being sorted. The iron ore is prepared by the combined process of magnetic separation and re-election of the sieved product, and the amount of S con…