Washed away the summer sweltering 6 full five-point pra…

Recommend one for cooling shower head: German Baoshengyuan full copper hot and cold shower faucet Promotion price: 699.00 yuan / set Editor's comment: Humanized one-key three-control technology, coated crystal brick technology, lasting for a long time, the sewer pipe rotates 360 degre ...more...

Posted on

HG20592-20635-97 steel pipe flanges, gaskets, fasteners…

HG20592 ~ 20635-97 flange standard HG20592——20635-97 flange standard has 536 pages. This standard specifies the nominal diameter, nominal pressure, flange type, connection size, sealing surface size and marking of steel pipe flanges (European system) baby safety chair Ba ...more...

Posted on

Shanghai No.1 Optical Instrument Factory teaches you to…

Shanghai No.1 Optical Instrument Factory will continue to introduce its experimental steps to you: 1. Turn on the power, install the tested thread gauge firmly between the two centers, and align the circumferential scale of the worktable with the zero value of the indication. 2. According to the ...more...

Posted on

Image and nature of tangent function ppt (Shanghai Educ…

The image and properties of the tangent function courseware (1) (Shanghai Education Edition is higher) When α is in the first quadrant: sine: sinα = BM> 0 cosine: cosα = 0B> 0 tangent: tanα = AT> 0 us It will be considered to divide the interval into eight equal parts. Nine poin ...more...

Posted on

Burmese pineapple

Burmese pineapple grows in Southeast Asia and the South Pacific. It is an evergreen tree with a height of up to 45 meters and a maximum diameter of about 1 meter. It is mainly imported from Indonesia and Malaysia and is also the most important commodity in Myanmar. Cross sect ...more...

Posted on

Every girl's princess dream perfect wardrobe makes …

[ Chinese wardrobe network ] Many women want to become "Goddess" level figures, especially those who are loved by their own as goddess, want to be a goddess in addition to natural beauty, through the day after dressing can also be modified The wardrobe has such a magical fun ...more...

Posted on

Vector Coordinate Representation and Operation (Shangha…

3. Review the basic theorem of plane vectors: if e1 and e2 are two non-collinear vectors in the same plane, then for any vector a in this plane, there is and only one pair of real numbers λ1, λ2 such that a = λ1 e1 + λ2 e2. Two non-collinear vectors e1, e2 are called a set of bases of al ...more...

Posted on