求翻译：按照我们的商定：生产1000个阻断器，整个过程分两步进行。第一步是样机生产阶段：由你方提供样品、研制开发费500美元和在中国对我方生产的样品进行CE和ROHS认证检测的费用人民币3000，考虑到美元的汇率下跌，3000人民币相当于469美元。所以总的首次电汇的费用为969美元。当我方生产完样品，并提交认证机构进行认证检测（我方生产样机大约需要15个工作日，认证机构认证检测需要7-10个工作日），当我方样机生产和认证完毕立即提交你方，当得到你方认可就转入第二步成品生产阶段：首先由你方电汇生产费用4000美元，我方收是什么意思？

According to our agreed: 1000 block, the whole process in two steps. The first step is to prototype stage of production: provided by your sample, the research and development fee of $ 500 and samples of our production in China for RMB 3,000 CE and ROHS certification testing fees, taking into account the USD rate decreased by 3,000 RMB equivalent of us $ 469. So the total fee for wire transfer is $ 969 for the first time. When you finish our production samples, and submit the certification body for certification testing (takes approximately 15 working days of us production prototype, certification testing requires certification bodies 7-10-business), our prototype production and certification up to immediately submit your party when you authorized transfer second finished production stages: production costs $ 4,000 first by your wire transfer, we accept