| 1. | It is frequently referred to as "pressure head" when expressed in terms of energy per unit weight of water .
当以单位水重的能量来表达时，经常看作为“压头”。 |
| 2. | Perhaps a key adaptive advantage of the angiosperm is their ability to construct wood with much less expenditure of energy per unit weight .
也许被子植物适应优势的秘诀就在于它们有能力形成每单位重量的木材可支付少得多的能。 |
| 3. | Test on supervision and control of dry unit weight of warping dam
淤地坝干容重的监理控制试验 |
| 4. | Unit weight approach for model sediment
模型试验的泥沙重度浅析 |
| 5. | Study on the relationship between maize unit weight and the water content
玉米容重与水分相关性分析 |
| 6. | Estimation of the unit weight variance in nonlinear model adjustment
非线性模型平差中单位权方差的估计 |
| 7. | Standard test methods for moisture - density unit weight relations of soil - cement mixtures
水泥及土混合料的湿度-密度比率 |
| 8. | Standard test method for unit weight , yield , and air content gravimetric of concrete
混凝土的单位重量分析屈服点及空气含量测定 |
| 9. | Effective unit weight
有效单位重 |
| 10. | Saturated unit weight
饱和重度 |
