rational是什么意思？
rational[英][?r??n?l][美][?r???n?l]adj.神智清楚的; 理性的; 理智的; 合理的; n.合理的事物; [数]有理数; 懂道理的人，人类; 〈英〉合理的服装; 复数：rationals最高级：most rational比较级：more rational例句:1.Yet rational herds can quickly change their minds. 但理性羊X可以很快改变它们的主意。
帮忙翻译一段英文，译文合理，语句通顺即可，谢谢10
- Fig. 10 shows the variation of the system thermal efficiency with the turbine inlet temperature. To generate this figure the evaporator pressure and condenser temperature were kept constant at 2 MPa and 298 K, respectively. Similar to the previous case, the isentropic efficiencies of the turbine and pump were maintained at 80% and 85%, respectively, and the temperature differential was kept constant at 15 K for all cases. This figure shows the effect of superheating the working fluid on the thermal efficiency of the cycle. The temperature range for each fluid used to аnalyze the different configurations is from the saturation t筏供摧佳诋簧搓伪掸镰emperature to the critical temperature. Fig. 10 illustrates that the efficiency of the cycle slightly decreases for some fluids or remains approximately constant for others with the increment of the turbine inlet temperature for all the configurations. This reflects the fact that organic fluids do not need to be superheated to increase the cycle thermal efficiency as opposed to water where increasing the inlet turbine temperature increases the thermal efficiency [10]. The trend observed with the boiling point described in Fig. 3 is also consistent with the results presented in this figure. Fig. 10 demonstrates that regenerative ORC has the best thermal efficiency for the аnalyzed organic fluids. Among the three organic fluids included in this figure, R113 shows the maximum efficiencies for temperatures above 450 K. R123 shows the best efficiencies for temperatures between 420 K and 450 K, while isobutane is the best fluid for temperatures between 375 K and 410 K. It is important to point out here, how organic fluids can be used to produce power from low-temperature waste heat; however, organic fluids are restricted to a small range of applicability depending on their thermodynamic conditions.
- 图10显示了变化与涡轮入口温度系统的热效率。生成这个数字蒸发器压力和冷凝器的温度在2 MPa和298 K,保持不变。类似于前面的情况下,涡轮和泵的等熵效率维持在80%和85%,分别,温差在15 K所有情况下保持不变。这图显示了过热工作流体的影响热效率的周期。每个流体的温度范围内用于分析不同配置的临界温度的饱和温度。图10说明循环的效率稍微减少一些液体或仍约为别人不断的增加涡轮入口温度的所有配置。这反映了这样一个事实:有机液体不需要过热提高循环热效率而不是水,增加进气涡轮温筏供摧佳诋簧搓伪掸镰度提高了热效率[10]。观察到的趋势与图3中描述的沸点也符合结果提出了图。图10表明再生兽人的最佳热效率分析有机液体。三有机液体包含在这个数字,R113显示温度高于450 K的最大效率二显示了最佳效率温度在420 K和420 K,而异丁烷是最好的流体温度在375 K和375 K .重要的是要指出,如何使用有机液体的低温余热发电;然而,有机液体限制在一个小范围的适用性取决于他们的热力学条件。
帮忙翻译一段英文，译文合理，语句通顺即可，谢谢7
- The heat transfer rate required in the evaporator to generate the same power output with the turbine inlet pressure is evaluated in Fig. 7. This figure was generated using R113 for the different configurations using the same conditions described in Fig. 3, and for an electric power output of 100 kW, with a typical generator efficiency of 82%. The generator efficiency is defined as the ratio of the electric power and the net power produced by the ORC. It can be seen that for R113 the heat rate needed decreases with increasing turbine inlet pressures. This is due to the decrease in the mass flow rate needed and the increase in the net work of the cycle with the increment in turbine inlet pressure. Fig. 7 demonstrates that regenerative ORC required lower heat rates compared to basic ORC to produce the same power. The amount of heat required for regenerative ORC花丁羔股薏噶割拴公茎 is 7.5–9.7% less than the heat required for a basic ORC, for the lowest and highest turbine inlet pressures, respectively. From Figs. 4–7 it can be concluded that regenerative ORC not only increases the first and second law efficiencies but also decreases the amount of heat required and system irreversibility to produce the same power output as compared with basic ORC.
- 在蒸发器中所需的涡轮机入口压力输出功率相同的传热速率在图7的评价。这个数字是以R113为使用图3中所示的相同条件下，不同的配置生成的，和一个100千瓦的电力输出，一个典型的82%发电机效率。发电机效率定义为有机工质朗肯循环系统（即orc）产生的电功率比和净功率的比率。可以看出，R113热率需要降低涡轮机入口压力的增加。这是由于在质量流量所需的减少和在涡轮机入花丁羔股薏噶割拴公茎口压力增量的循环工作净增加。图7表明，产生相同的功率，相比基本有机工质朗肯循环系统（即orc）再生ORC需要较低的热率。再生orc所需要的热量是7.5–9.7%小于所需热量的一个基本的orc，在最低和最高的涡轮机入口压力，分别。从无花果。4–7可以看出再生orc不仅增加第一和第二定律效率而且降低产生相同的输出功率为基本ORC相比所需的热量和系统的不可逆性的量。
这段英文的翻译，通顺合理的，直接谷歌翻译粘贴的不要浪费时间了。
- 8.For example, a customers tablemight store one customer per row. The number of rows in the table is the numberof records in it. Row A record in atable. Records or Rows? You may hearusers refer to database records when referring to rows. For the most part, thetwo terms are used interchangeably, but row is technically the correct term.Primary Keys Every row in a table shouldhave some column (or set of columns) that uniquely identifies it. A tablecontaining customers might use a customer number column for this purpose,whereas a table containing orders might use the order ID. An employee listtable might use an employee ID or the employee social security numbercolumn. This column (or set of columns)that uniquely identifies each row in a table is called a primary key. Theprimary key is used to refer to a specific row. Without a primary key, updatingor deleting specific rows in a table becomes extremely difficult as there is noguaranteed safe way to refer to just the rows to be affected. Always Define Primary Keys
- 你好
“合理安排时间，有效率完成工作”翻成英文怎么说
- “合理安排时间,有效率完成工作”"涪锭帝瓜郜盖佃睡顶精;Reasonable arrangement of time, efficient completion of work"
英文"使一个数在合理的范围"可以用什么词表达？
- RT 多谢
- set a figurenumber within the reasonable range
合理安排作业的英文
- 不要机器翻译 急急急
- Reasonable arrangement of work
