cement water ratio

例句：

1. 1.The construction crew needs to maintain a precise cement water ratio to ensure the quality of the concrete.
   施工队需要保持精确的水泥水比例，以确保混凝土的质量。
2. 2. The engineer carefully measured the cement water ratio before pouring the concrete.
   工程师在浇筑混凝土前仔细测量了水泥水比例。
3. 3. The manufacturer has provided a detailed guide on how to calculate the cement water ratio for their product.
   制造商提供了一份详细的指南，说明如何计算他们产品的水泥水比例。