Studies on Macrocentrus linearis, including its biology, natural parasitic rate and the field control effect on Ostrinia furnacalis are reviewed in this paper.
本文综述了对螟虫长距茧蜂的研究概况,包括该寄生蜂的主要生物学习性、对玉米螟自然寄生率及田间防治玉米螟效果等。
Taking core loss into account has important effect to improve the torque performance of the motors' field oriented control.
考虑铁损对于提高异步电动机磁场定向控制下的转矩性能具有重要的作用。
The results show that the missile rotation has hardly effect on inner flow field structure of SFE, but some effects on the control thrust of attitude control motors both in magnitude and in direction.
结果表明,弹体旋转对超音速射流元件内部流场结构几乎没有影响,而对姿态控制发动机的控制推力大小和方向的影响不容忽视。
The control effect was 92.3% to peach mould core disease by spraying preparation of PB97 in the field.
田间小区采用PB97制剂对桃霉心病的防治效果为92 .3 % ,可有效地控制病害的发生。
Since the new control model has been put into use in the work field, its effect has been improved a lot, its control accuracy raised, and tapping time for wire rod reduced.
新的控制模型在现场投入应用后,效果良好,提高了控制精度,减少了线材的出钢时间。
The result of field operation shows that the algorithm is ease and good for practical use, the control effect is better than of conventional PID control.
现场运行结果表明该算法简捷实用,控制效果优于传统的PID控制。
The effect of control holes of the blasting method was analyzed theoretically and the blasting mechanism of it was discussed and tested by lab and in field.
在理论上和利用实验室模型实验对深孔控制卸压爆破中的控制孔的作用进行了研究分析。
Field tests of Zhejiang province and Jiangsu province have been confirmed that it has fine control effect for many insects of rice and cotton.
稻安磷乳油经浙江、江苏两省八个地区的应用,表明对水稻和棉花等作物的多种害虫均具有良好的防治效果。
The control system has run stably and credibly, satisfied field real control need and proved to have good effect.
控制系统运行稳定可靠,满足了现场实时控制要求,效果良好。
According to the theory that plasma absorbs laser energy and with the experiment method which elevates the nozzle during welding, the effect of magnetic field on plasma control is discussed.
本文从等离子体吸收激光能量的理论入手,采用提升喷嘴的实验方法,系统研究了电磁场参数对等离子体控制的影响。
For getting better control effect, all disturbances should be synthetically considered in the process of field control.
为了获得更好的控制效果,要求现场控制中尽量综合考虑各种干扰因素。
The result of field test showed it has good control effect against citrus scab and bacterial blight of rice.
初步进行了田间应用试验,它对防治柑桔疮痂病,水稻白叶枯病效果显著。
Moreover, the influence of a magnetic field on shock wave control is studied and the test results show that magnetic fields greatly reinforce the shock wave control effect.
实验研究了磁场对激波控制效果的影响,结果表明施加磁场使得激波控制效果显著增强。
B130 and MA—7, two inhibiting microorganisms of Pseudomonas solanacearum, were applied to control bacterial wilt of ginger in the field of Changle county and gave a satisfactory effect.
用青枯病假单胞菌的拮抗微生物B130和MA—7制成的泥炭制剂具有良好的姜瘟病防治效果。
The control effect of Wengmeiqing (validamycin) and its mixture on rice sheath blight disease was tested in field.
研究了纹霉清及其复配剂防治水稻纹枯病的防治效果。
Objective to research snail control effect with magnesium borate ore powder in laboratory, field trials and field application.
目的观察硼镁石粉室内灭螺效果和现场应用效果。
The result of field trials showed that metsulfuron-methyl gave bad control effect against Alopecurus japonicus.
田间比较试验结果表明,用甲磺隆等磺酰脲类除草剂对日本看麦娘防效很差。
The invention belongs to the pulp and paper making field and particularly relates to a method for rapidly assessing the waste paper pulp adhesive substance control effect.
本发明属于制浆造纸行业,特别涉及一种对废纸浆进行胶黏物控制时快速评价其控制效果的方法。
Objective To evaluate the snail control effect of 4% powder of niclosamide ethanolamine salt in the field.
目的评价4%氯硝柳胺乙醇胺盐粉剂现场灭螺效果。
If this model will be incorporated into the black-oil model, it can match core flooding result of LPS deep profile control, it also can predict field effect.
把该模型结合到黑油模型中,可以进行LPS深部调剖的室内岩心驱拟合和矿场应用效果预测。
Through the comparison of the diffuser with and without added electric and magnetic field, the evaluation of MHD control effect on supersonic diffuser is concluded.
通过对外加电磁场下的扩压器与无外加电磁场条件下扩压器的比较,总结了MHD控制对于超声速扩压器的作用效果评估。
Natural fractures and current tectonic stress field control the distribution of the artificial fractures and affect injecting pressure and effect of injecting water.
此外,天然裂缝和现今构造应力场控制了人工压裂缝的展布,并影响油田的注水压力和注水效果。
Field experiments showed that 20% Saisentong SC had good control effect on rice bacterial blight.
田间试验表明,20%噻森铜悬浮剂对水稻白叶枯病具有良好的防效。
The research indicated that MEMS device generate excellent control effect on asymmetric vortices over slender body as well as on complex flow field.
研究表明:MEMS器件对控制大迎角细长旋成体非对称涡和复杂流场具有良好的控制能力。
The field technique test and effect evaluation of sand control of recent years are summarized, and application of high - pressure filling sand - control and chemical sand -control have a good effect.
文章总结了近几年防砂的现场工艺试验及效果评价,优选出采用高压充填防砂及化学防砂应用效果较好。
The effect is obvious on weed control with black film mulched, the fresh weight of weed in field is reduced 70.
利用黑色地膜覆盖防草效果明显 ,田间杂草鲜重比与黑膜同材质的透明地膜覆盖减少 70 。
The effect of the new kind of concentrated compound fertilizer contained with herbicide on weed control and wheat growth in the wheat field was studied in the basin culture and the plot trials.
通过盆钵栽培和田间小区试验,研究新型高效复配小麦专用除草药肥对麦田杂草防效和小麦生长发育的影响。
Reviewed are CO2 corrosion mechanism and its effect factors in oil and gas field development projects and introduced are familiar CO2 corrosion prediction models and corrosion control measures.
综述了油气田co2腐蚀机理及其影响因素,介绍了常见的CO2腐蚀模型和防护技术。
The above mentioned soil antagonistic strains were tested for controlling cotton fusarium wilt disease in the field. The results showed that T 03 was the best, the control effect was 76.5%.
用上述7个土壤拮抗菌进行棉花枯萎病田间小区防效试验的结果表明,T-03对棉花枯萎病的防效最高,达76.5%;
The above mentioned soil antagonistic strains were tested for controlling cotton fusarium wilt disease in the field. The results showed that T 03 was the best, the control effect was 76.5%.
用上述7个土壤拮抗菌进行棉花枯萎病田间小区防效试验的结果表明,T-03对棉花枯萎病的防效最高,达76.5%;
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