casting under low pressure

例句：

1. 1. The process of casting under low pressure is crucial for the quality of the finished product.
   在低压下铸造的过程对于成品的质量至关重要。
2. 2. The company was forced to cast under low pressure due to a lack of raw materials.
   由于缺乏原材料，该公司被迫在低压下铸造。
3. 3.The engineer carefully monitored the temperature and pressure during the casting under low pressure process.
   工程师仔细监控了低压铸造过程中的温度和压力。