focalizing

The most pivotal technique is focalizing technique in HIFU technique . At present , self-focused 、 ultrasound phased array 、 acoustic lens and so on are in common use .

HIFU技术中最为关键的技术是聚焦技术，目前所采用的聚焦方式主要有：自聚焦、超声相控阵列聚焦、声透镜聚焦等。

It is a basic step and method which should be adopted in juvenile football training , and which has active guiding significance and reference value in improving in full scale the scientific , systematic , focalizing and practical natures of juvenile football training .

是进行青少年足球训练应采取的基本步骤与方法，对全面提高青少年足球训练的科学性、系统性、针对性和实效性具有积极的指导意义和参考价值。

The present paper reports the first 75 species and 6 subspecies or varieties belonging to 29 genera and 19 families of valuable horticultural plants resources of the pteridophyte in Fujian Province , China , focalizing on their essential habits , specialities and usefulnesses .

本文介绍了福建省部分有观尝价值的蕨类园林植物资源共19科、29属、75种、6变种或变型，主要介绍其习性、特性及用途等。