免费无毒黄片_娇妻的欧美交换视频_毛片点击进入在线播放_午夜精品国产AV,亚洲日韩色在线高淯v,依依成人网在线观看,九一av在线,老熟妇性色老熟妇性,久久电影午夜伦高清A片,黄片免费国产,av无码免费无禁网站久久

���v�h(hu��n)���W(w��ng)

�Ϻ�����h(hu��n)�,��Ƽ����޹�˾

�P(gu��n)ע�ȣ�9213 ���S�ȣ�22 ���vָ��(sh��)��9325

�‡�WTW PH3310��yʽPHӋ(j��)���Ӌ(j��)

�˚⣺2229 �l(f��)���r(sh��)�g��2009-12-30 16:57

�P(gu��n)�I�~���O(ji��n)�y(c��)�z�y(c��)�x

�a(ch��n)Ʒ��̖(h��o)��

��(y��ng)���I(l��ng)��늴�ݗ��

�a(ch��n)Ʒ�r(ji��)�����h

���˽����a(ch��n)ƷԔ��,��Ո(q��ng)


�‡�WTW PH3310��yʽPHӋ(j��)���Ӌ(j��)�ɜy(c��)��pH,mV�͜ض�,��߷ֱ���0.001pH
���B�Ӹ��N��(bi��o)��(zh��n)PH��(f��)��늘O��ORP늘O
��ͬ늘O�ɷքe�O(sh��)���y(c��)�����Å���(sh��)
�Ԅ�(d��ng)�x��(sh��)����,푑�(y��ng)�r(sh��)�g15��,�؏�(f��)��С��0.01pH
�Ԅ�(d��ng)1,2,3,4��5�c(di��n)У��(zh��n)
У��(zh��n)��B(t��i)�O(ji��n)�y(c��):�B�m(x��)�y(c��)���r(sh��),ͨ�^ֱ�^�Ŀ̶��@ʾ,�S�r(sh��)�O(ji��n)ҕ�y(c��)��ֵ�Ƿ񳬳���Ч��У��(zh��n)����
�惦(ch��)����,���Ԅ�(d��ng)���ք�(d��ng)�惦(ch��),ÿ�M��(sh��)��(j��)�����y(c��)��ֵ,�ض�,����,�r(sh��)�g,��̖(h��o)���y(c��)���r(sh��)��У��(zh��n)��B(t��i)
�Ԅ�(d��ng)�惦(ch��)5000�M�y(c��)����(sh��)��(j��),����1s-60min֮�g�O(sh��)���惦(ch��)�g��,�ք�(d��ng)�惦(ch��)200�M�y(c��)����(sh��)��(j��)
USB�ӿ�,�惦(ch��)�Ĕ�(sh��)��(j��)��ͬ����ݔ?sh��)�PC
�����@ʾ���Ԅ�(d��ng)�P(gu��n)�C(j��)����(����10min-24h֮�g�O(sh��)��)
PH3310��yʽPHӋ(j��)����(sh��):
PH����:
-2.0��20.0 �ֱ���0.1����: ±0.1
-2.00��20.00�ֱ���0.01����: ±0.01
-2.000��19.999�ֱ���0.001����: ±0.005
ORP����:
-1200.0��1200.0 �ֱ���0.1����: ±0.3
-2500��2500�ֱ���1����: ±1
T[��]:-5.0��105.�ֱ���0 0.1����±0.1
�ք�(d��ng)�ض�ݔ��[��]-20��130,
��(sh��)��(j��)�ӿ�:��� USB B ��(sh��)��(j��)ݔ��
�Դ:�A��늳� 4AA×1.5V,������1000С�r(sh��)(�o����)
�h(hu��n)���l��:���� -25��65�����-10��55��
���o(h��)�ȼ�(j��):IP67
�ߴ�: 180×80×55 mm


�P(gu��n)�ڡ��‡�WTW PH3310��yʽPHӋ(j��)���Ӌ(j��) ���u(p��ng)Փ
�]�䣺 �ܴa�� ���Ñ�ע��(c��)

�W(w��ng)���u(p��ng)Փ�H������_(d��)��(g��)�˿���,�������������v�W(w��ng)ͬ�����^�c(di��n)���C��(sh��)������,��

��(y��ng)������