查询词典 unfeasible

However, agricultural production has the characteristics of large coverage, frequent changes seasonally and regionally, and low benefit in per unit area, therefore, it is unfeasible to get the annual information through ground in situ measurement neither in the aspect of technical issues nor in the aspect of economic sustainability.

获取大范围的水稻种植空间分布、面积和产量信息对指导水稻生产、合理分配水资源，以及监测大气环境变化等具有重要的意义。

In contrast, I prefer oriental apperception that is not starting from a system, far and unfeasible ultimate thinking, but starting from daily life, returning to the moment of the joint of sense and thought.

相比之下，我更欣赏东方式的领悟方式，那就是，不从系统着眼，不从遥远不着边际的终极思考着眼，仅仅开始于日常，回到感觉与思想交会的一刹那。

Laser-based metrology and grating-based metrology are two main ultra-precision tools of dimension measurement. However, very few research work has been done on grating-based nanometrology compared with laser-based nanometrology till now because many people, including some grating researchers and specialists, hold the idea that the accuracy of grating-based measurement is lower than the laser's and can only reach micrometre or sub-micrometre level. They consider that it is unfeasible to get nanometer-scale accuracy using grating-based sensors.

激光技术和光栅技术是毫米级以上量程的精密几何量测量的两种最主要手段，目前，用激光进行纳米测量的研究已经很多，但光栅纳米测量技术的研究却很少；很多人，包括很多光栅研究者和测量专家，都认为，光栅测量的精度不如激光，其精度还只是停留在微米量级上，用光栅来进行更高精度的测量以至纳米测量是难以实现的。

To provide even a brief review here would be unfeasible so to highlight the effectiveness of titanates we will focus on some results that would be impossible to obtain with silanes.

即使是在这里提出一个简单的综述也是困难的。为了突出钛酸酯的效用，我们将强调使用硅烷无法得到的一些结果。

Refloating the sunken ship proved impracticable because of its fragility; a suggested reform that was unfeasible in the prevailing circumstances.

因为过于脆弱打捞沉船是不切实际的；一个在主流环境中不可实现的改革建议。

Refloating the sunken ship proved impracticable because of its fragility; a suggested reform that was unfeasible in the prevailing circumstances.

因为过于脆弱打捞沉船是不切实际的；一个在主流环境中不可实现的改革建议。价格太高，交易困难。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。