2 chemical disinfectants and antiseptics-hygienic handwash-test method and requirements phase 2 step 2; german version en 1499 : 1997 化学消毒剂和防腐剂.消毒洗手液.试验方法和要求
handwashing, when done correctly, is an important personal hygiene practice to prevent the spread of communicable diseases 用正确的方法洗手是保持个人生的良好习惯，能有效地防止传染病传播。
If you are ill, please do not come, as even minor infections can spread rapidly through the children . frequent handwashing is mandatory 如果你生病了,请不要来,即使很小的感染也可以很快的感染孩子.经常洗手是强制性的
Guidelines for good handwashing handwashing, when done correctly, is an important personal hygiene practice to prevent contracting and spreading communicable diseases 用正确的方法洗手是保持个人?生的良好习惯，能有效地防止感染及传播传染病。
Guidelines for good handwashing handwashing, when done correctly, is an important personal hygiene practice to prevent contracting and spreading communicable diseases 用正确的方法洗手是保持个人?生的良好习惯，能有效地防止感染及传播传染病。
Guidelines for good handwashing handwashing, when done correctly, is an important personal hygiene practice to prevent contracting and spreading communicable diseases 用正确的方法洗手是保持个人?生的良好习惯，能有效地防止感染及传播传染病。
Guidelines for good handwashing handwashing, when done correctly, is an important personal hygiene practice to prevent contracting and spreading communicable diseases 用正确的方法洗手是保持个人?生的良好习惯，能有效地防止感染及传播传染病。
This paper introduces primarily the design of hardware and software systems in infrared automatic handwash basin including the working process of the electric circuit 一种消毒用红外自动洗手机的硬件系统设计及软件系统设计,其中包括电路的运行工作过程。
