Be due to a great variety and minute particle size and multivariate shape and great difference in particle's size, which brings difficulty to separation of pollens.
但由于花粉种类繁多、颗粒微小、不同种类花粉形状多变且大小相差很大，这给花粉的分选带来极大困难。
Addition of certain additives into low viscous non-gel sieving matrices is an efficient and simple method to overcome the difficulty of filling capillaries and enhance DNA separation.
在低粘度的无胶筛分介质中加入某种添加剂是一种有效且简单的克服填充困难和提高DNA分离性能的方法。
The improvement to the method of variable combination makes the problem of dual variable separation in geometric programming with a multi difficulty degree simple and easy to solve.
对变量组合法进行了改进，使多困难度几何规划中对偶变量分离问题简单易解。
The geographical and cultural separation of the company from its marketplaces causes great difficulty in communicating effectively.
地域限制和文化差距，给公司和市场的交流造成困难。
Objective We adopted techniques of the modern membrane separation and exact filtration and the technology of reserve osmosis solves difficulty of medicinal water.
目的：我们采用先进的自动控制技术、膜分离技术、精滤、双级反渗透和紫外消毒系统研制出全自动封闭式医用纯水制备系统。
Objective We adopted techniques of the modern membrane separation and exact filtration and the technology of reserve osmosis solves difficulty of medicinal water.
目的：我们采用先进的自动控制技术、膜分离技术、精滤、双级反渗透和紫外消毒系统研制出全自动封闭式医用纯水制备系统。
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