可只要得拿针跟很多人交换食物，就得掌握做针的技能。
So long as there were plenty of people with whom to swap needles for food, it made sense to acquire such skills.
目的探讨在注射吸毒人群中开展针具交换的可行性，评价其预防注射吸毒者HIV感染效果。
Objective To explore the feasible methods and evaluate the results of needle exchange project in preventing from HIV infection among drug users through injection.
连接方法：将电针仪的正负极分别接在针柄上，每次将正负极交换连接。
Linking method: Connect the electric needle instrument of plus or minus pole respectively on the needle handle, and exchange poles every time.
另外实施清洁针具交换项目，使他们减少共用针具行为也是一项有效措施。
In addition the implementation of clean needle exchange program, so that they act to reduce needle sharing is an effective measure.
项目在云南、广西、越南和缅甸运作，涉及15个针具交换项目点的开展。
Project in Yunnan, Guangxi, Vietnam and Myanmar operation, involving 15 needle exchange sites to carry out the project.
但招聘的管理员却利用组织发放针具的条件，在针具交换门诊点内贩卖毒品。
However, the recruitment administrator has been employed by the Organization of the conditions for issuance of needle in the needle exchange point in out-patient drug trafficking.
但招聘的管理员却利用组织发放针具的条件，在针具交换门诊点内贩卖毒品。
However, the recruitment administrator has been employed by the Organization of the conditions for issuance of needle in the needle exchange point in out-patient drug trafficking.
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