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zhusheng05

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dashing

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The Hershberg stirrer, shown in part in Fig. 4, provides very efficient agitation of this or other pasty mixtures. Two glass rings are sealed to the end of a stirrer shaft at right angles to one another, and each is threaded with B. and S. No. 18 Chromel or Nichrome wire (in the drawing the wire is shown only for the lower ring; the upper wire is not provided with a cross brace). The stirrer is easily introduced and removed through a narrow opening, and in operation it follows the contour of the flask. It is convenient to use glass tubing for the stirrer shaft and to provide it with a pair of small ball bearings slipped on over short sections of rubber tubing (one of these bearings is shown in the drawing).

有图,见此链接:
http://img04.album.enorth.com.cn/big/06/82/83/6828393_999991.jpg

Hershberg介绍

http://img04.album.enorth.com.cn/big/06/82/84/6828426_009030.jpg

注:图看不到可以右键下载

[ Last edited by dashing on 2007-8-14 at 07:29 ]
2楼2007-08-13 15:40:53
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