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error is big
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  误差较大
     Conventional method completely depend on experience formula, it s error is big.
     传统的方法完全靠经验公式和经验来决定动力大小,误差较大
短句来源
     (2) Measurement error is big.
     (2)测量误差较大
短句来源
     While the integral modulus is zero because the system error is big at the beginning of system adjustment,the control mostly depends on the Fuzzy PD control.
     当系统调节开始时由于系统误差较大,系统的积分系数为零,系统的控制主要由模糊PD控制来实现;
短句来源
     If using the same expression to convert the parameters of the different specific speeds, the error is big and some change with the other formula.
     改变转速后性能运用相似率计算产生的误差较大,以及有关其他一些经验公式也有变化,不再满足计算要求。
短句来源
     It is stated that the present physical model is imperfect owing to the neglect of the dimension error,especially when the error is big.
     指出现有的计算模型由于忽略了尺寸误差是不完整的,在误差较大时尤其如此。
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  误差很大
     The result shows that their error is big when the resistance is less than 1 Ω, the maximum error is 21% when the resistance is 1~30 Ω for these instruments.
     结果表明 ,地网接地电阻 Rx<1Ω 时 ,一般杆塔接地电阻测试仪的测量误差很大 ; Rx 为 1~ 30 Ω 时 ,其最大误差为 2 1%。
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  “error is big”译为未确定词的双语例句
     Based on the characteristic that the guideway is long(3-6m) and straightness error is big(0.3mm/m),and it is very easy to go beyond the range to use conventional methods,so we bring forward the straightness measurement method based vision measurement.
     根据课题中发射筒的导轨长(3-6米),直线度误差大(0.3mm/m)的特点,利用传统的准直光管或激光准直法很容易超出量程,提出了基于视觉测量的直线度测量法。
短句来源
     It has the shortages that collection frequency is inconsistency with collection numbers,the real time of collection can't be guarantee and the measure error is big;
     光谱仪采用线阵CCD接收物体表面的光辐射能量存在着采集频率与采集点数的矛盾,无法保证采集的实时性、测量误差大等不足.
短句来源
     The cost is high and the error is big in volumetric flow measurement method and velocity measurement .
     容积式流量测量方法和速度式流量测量方法存在费用高,误差大的缺点.
短句来源
     In the domestic concrete activator enterprises, above 95% are the small andmedium-sized enterprise, furthermore, production craft and equipment of the concreteactivator is backward, automaticity is low, personal error is big, the production efficiency islow, therefore, in view of the domestic multitudinous similar small and medium-sizedenterprise, developing automatic monitoring system in the production line of the concreteactivator has the certain application value and the practical significance.
     在国内混凝土外加剂生产企业中,95%以上是中小型企业,并且混凝土外加剂的生产工艺和生产设备落后,自动化程度较低,人为误差大,生产效率低,故研制针对国内众多同类中小型企业的混凝土外加剂生产线自动监控系统有着一定的应用价值和实用意义。
短句来源
     C-Traveling wave location is quick while the error is big,and S injected signal is slow while the error is small. The proposed fault location scheme combines them and locates the fault with two steps. Firstly the fault distance is calculated assumably by C-Traveling wave method.
     针对C型行波法计算速度快、误差大,S注入法检测速度慢、但精度高的这些特点,将这两种方法有效地结合起来,进行故障定位时分两步进行,首先用C型行波法定出大概距离,然后用S注入法准确定出故障位置并确定分支,这在很大程度上提高了故障定位的效率、准确性和可靠性。
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  error is big
However in the first a few samples, the locating error is big.
      


In the paper,the principle of X-ray quantitative phase analysis in the known documents is researched,and based on which,the data of phase 3,phase 4 and phase 5 are gaven. The result of the known data show that if the number of a phase in a sample is within three,its absolute error is±3%; but if it is over three,the error is bigger and there is no satisfied result.

本文研究了已有文献X射线物相定量分析的原理。进一步,笔者通过矿物的X射线无标法相定量分析绐出了二相、三相、四相、五相样品的分析数据。从获得的数据结果表明,在样品中物相数不超过3时,其结果的绝对误差为±3%,可作为三相结果的应用;当样品中物相数超过3时,其结果误差较大,未获得满意效果。

Measure and analysis of rigidity on technology system is a important mean of studying mechanical process accuraly,and at present usually asing "statics rigidity measure method",thus the error is bigger compare to practical results. "reverse direction cutting method to measure rigi -dity under same cases with practical condition, its principles conform to deforming law, therefor this is a kind of simple and easy measure method. "Reverse direction cutting method" has some limitations in studying change law...

Measure and analysis of rigidity on technology system is a important mean of studying mechanical process accuraly,and at present usually asing "statics rigidity measure method",thus the error is bigger compare to practical results. "reverse direction cutting method to measure rigi -dity under same cases with practical condition, its principles conform to deforming law, therefor this is a kind of simple and easy measure method. "Reverse direction cutting method" has some limitations in studying change law of rigidity. This paper by solve calculated error of cutting;direct measure using measure ring;change cutting dosage;a few times reverse direction cutting and measuring to solve insufficieney of reverse direction cutting method, and using this method have studied cutting force, remirror factor and so on.

工艺系统刚度的测定与分析是研究机械加工精度的重要手段,而目前大都采用“静刚度测定法”,与实际结果误差较大,“反向切削法”是在与实际工作状态相同的情况下对刚度进行测定,其原理符合变形规律,是目前既结合实际又简便易行的一种测定方法,应予以大力推广.“反向切削法”在研究刚度变化规律方面具有一定的局限性,本文通过解决切削力误差;采用测力环直测;改变切削用量;多次反向切削测定等方法,以解决反向切削法测定之不足,同时,根据实践,还可用此法对切削力、复映系数等进行测定研究.

The BOD 5 is an important index in effluent monitoring. But the repeatability of the test results is poor, and the error is big, because the species and the number of the micro organisim in the seeding solution is uneven. A new method is proposed which uses a mixed inoculum selected and cultured from the acclimated effluent as seeding solution to determine the BOD 5. The repeatability of the test results increased significantly, but the accuracy has no changes compared with that of seeding with the...

The BOD 5 is an important index in effluent monitoring. But the repeatability of the test results is poor, and the error is big, because the species and the number of the micro organisim in the seeding solution is uneven. A new method is proposed which uses a mixed inoculum selected and cultured from the acclimated effluent as seeding solution to determine the BOD 5. The repeatability of the test results increased significantly, but the accuracy has no changes compared with that of seeding with the waste water or the acclimated effluent directly. The inoculum can be cultured and preserved at low temperature,so that it can be used repeatedly.

提出了采用从驯化成熟的废水中分离培养的混合菌种做接种液测定废水生化需氧量(BOD5)的方法。此方法比直接用废水或驯化废水做接种液作定的BOD5的重复性有显著提高,而精密度则无显著变化。混合菌液可扩大培养低温保存,重复使用。

 
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