1、

This essay, according to the Huygens Superposition the theorem makes a qualitative analysis of the distributing character of dipole sound field and mainly introduces the formation and function of the aircraft engine ground trial active noise reduction system which is designed by us.

本文根据惠更斯叠加原理,定性分析了偶极子声场分布的特点,简要介绍了我们研制的喷气飞机地面试车主动式降噪系统的组成及其功用。

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2、

Time Trial 3 will be held on 27 Mar near Tseung Kwan O Sports Ground.

第三场计时赛将于3月27日举行,地点为将军澳运动场附近.

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4、

The trial also showed both insecticides had good effects on larvae in breeding-ground, and the positive rate of larvae in breeding-ground gradually reduced as the time went on.

2种杀虫剂对白纹伊蚊幼虫的孳生地具有良好的控制作用,经趋势检验,两种杀虫剂的P值均小于001,表明幼虫孳生阳性率随时间逐渐降低,效果显著。

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5、

Works will soon be carried out on the University Square for ground investigation and trial pits excavation.

勘察工作很快会在大学广场展开,并在该处某些特选位置进行钻探。

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6、

the software provides power and implements voltage test for the flight control computer in the uav ground half entity simulation trial, which is valuable for other development of measuring and control software.

该软件在无人机半物理仿真试验中完成了飞控计算机电源的供给与耐电压扰动性能的测试,对今后的测控软件开发具有重要参考价值。

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7、

trial - manufacture on the drip proof ground glaze of double firing glazed tile

二次烧釉面砖不透水底釉的试制

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8、

Based on a lot of spot measurement and trial work, the customary rule of slab design of the heavy plate was modified. Carry out underground and above ground IDO tanks cleaning and leakage inspection for CLP Power in Castle Peak Power Station in 2006.

在大量现场测量与试验基础上修改了工厂原有坯料设计规则.2006年于中电青山发电厂进行地底、地面油缸清理及压力测试工作。

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9、

Character witnesses helped the defendant stand her ground in the trial.

保证人帮助被告在法庭上站稳了脚跟.

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