Change the Zinc block of cathode Protection.
换阴极保护用的锌棒。
Zinc is a building block of the body and a deficiency in zinc can lead to stunted growth, diarrhea, impotence, hair loss, eye and skin lesions, impaired appetite, and depressed immunity.
锌是身体的基础材料，并且在缺锌可导致发育迟缓增长，腹泻，阳痿，脱发，眼睛和皮肤损伤，无食欲，和低下的免疫力。
Check the ingredient list for zinc oxide or titanium dioxide; both physically block UVA and UVB rays.
注意成分表中是否含有氧化锌或二氧化钛，这两者都能阻挡紫外线A和B。
Other areas of concern are transparent sunscreens that block all ultraviolet rays just as efficiently as any zinc paste.
其它要注意的还有透明的遮光剂，它可以阻挡所有紫外线，功效同zinc paste一样。
Zinco a line or coarse screen half-tone block etched on zinc for letterpress printing. see zinc engraving.
线条锌版活版印刷用的线条或粗网半色调凸版。参阅锌电版。
Zinco a line or coarse screen half-tone block etched on zinc for letterpress printing. see zinc engraving.
线条锌版活版印刷用的线条或粗网半色调凸版。参阅锌电版。
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