manual selectivity control

例句：

1. 1.The manual selection process is crucial for ensuring the quality of the final product.
   手动选择过程对于确保最终产品的质量至关重要。
2. 2.In this system, manual selection is used to ensure that only qualified candidates are accepted.
   在这个系统中，手动选择被用来确保只有合格的候选人被接受。
3. 3. The manual selection process requires careful consideration of each applicant's qualifications and experience.
   手动选择过程需要仔细考虑每个申请人的资格和经验。