最佳范围 meaning in English
optimum range
Examples
- There are no definitive data to indicate the optimal hemoglobin level in patients with anemia caused by chronic kidney disease ( ckd )
还没有确实的资料表明ckd所致贫血的病人中血红蛋白最佳范围。 - This paper analyzes the factors affecting the controlling precision of sand compactibility system and sets up the dynamic model of regression coefficient between sand compactibility and water content . to prevent the insufficiency or excess of sand water content , the amount of the first addition is set as 80 % of the total water addition amount . after the first water addition , we adopt ar model to predict the stable value of sand compactibility to shorten the time mixing the sand . each time we add water , the correction coefficient is introduced to adapt to the change in the composition of sand . the experiment shows that the mathematics model not only makes the water content in sand reach the best range within shorter time , but also directs how the sand composition should be adjusted , which can better conform to the actual situation
分析了影响型砂紧实率控制精度的因素，建立了型砂紧实率-水分回归系数的动态模型.为防止型砂水分不足或过量，将第一次加水量设定为总加水量的80 .第一次加水后，对型砂紧实率稳定值采用ar模型进行预测，以缩短型砂混制时间.每次加水后，引入修正系数，以适应型砂组成的变化.实验表明，该数学模型不仅使型砂水分含量在较短时间内达到最佳范围，同时可指示对型砂组成进行调整，能较好地符合实际情况 - Electromotor joins with high efficiency selected water pump , scm ( single chip micyoco ) control system commands water pump according to cooling water temperature which substitutes traditional strap - driving mechanism pump and forms tael - level intellectualized control cooling system combining with electromotion control of cooling fan . consequently it realizes that water pump and fan autoregulate with engine working status and assures t hat cooling water temperature keeps in the best range all the time and advances the reliability of engine working and realizes exact control of cooling water temperature in deed
选用高效率水泵与电机联接，改由单片机控制系统根据冷却水温控制水泵的工作，代替传统的皮带带动的机械水泵，结合冷却风扇的电动控制形成两级智能化控制的冷却系统，从而，实现了水泵和风扇转速随发动机工况变化的自动调节，真正实现了冷却水温的精确控制，保证了冷却水温始终保持在最佳范围内，大量减少传热损失降低油耗，并提高了发动机工作的可靠性。 - The conclusions are as follows : ( 1 ) the compose of rpc has an effect on the bond behavior between cfrp bars and rpc : the bond strength between cfrp bars and rpc will increase with the decrease of water to cement ratio , but doesn ’ t obviously ; the adding of steel fiber can improve the bond behavior between cfrp bars and rpc significantly , but steel fiber will also effect the workability of rpc , consider the bond behavior and economy , the content of steel fiber should be 2 % ; . silica fume can improve the bond strength between cfrp bar and rpc , but the bond strength isn ’ t in proportion to the content of silica fume , in this experiment , the optimal content of silica fume is 0 . 25 to 0 . 35
试验研究得到如下结果: ( 1 ) rpc的材料组成对rpc与cfrp筋粘结强度的影响: cfrp筋与活性粉末混凝土的粘结强度随着水胶比的降低而提高,但是提高的幅度并不明显;钢纤维的掺入,可以显著提高cfrp筋与rpc的粘结强度,但是钢纤维的增强效果与掺量并不是线性增加的关系,从综合经济性及粘结强度两方面考虑,钢纤维的最佳掺量为2 % ;掺入硅灰有利于改善粘结性能,但其掺量有一最佳范围,在本次试验中,硅灰的最佳掺量为0 . 25 0 . 35 。 - Analysis indicates the " low pressure closed reticular flow region " results in the non - equilibrium of pressure along the primary jet ' s orifice . to obtain as large vectoring angle as possible , the optimal ranges of angles , frequencies , velocity amplitudes , and distances from the microjet actuator to the primary jet exit were discussed . the relationship between the vectoring angle of the primary jet and the phase - difference of two adjacent actuators was analyzed
分析了“拉”模型单作动器模式下，微射流作动器的入射角度、驱动频率、速度幅值及与主射流间的距离对主射流偏转程度的影响，并确定了作动器工作参数的最佳范围;分析了“拉”模型双作动器模式下，不同的相位差对主流偏转程度的影响。