Field trails were conducted to validate the efficacy of 10% diazinon GR in control of peanut grub, and to determine the optimum application rate.
为验证10%二嗪磷颗粒剂对花生蛴螬防治效果，确定最佳剂量，我们进行了田间试验。
Optimum application of electrodeposition surface engineering techniques can considerably decrease the wear and corrosion loss, and hence effectively prolong the serving life of components.
利用电沉积表面工程技术可以有效地降低材料的磨损与腐蚀，延长工件使用寿命。
Optimum application of electrodeposition surface engineering techniques can considerably decrease the wear and corrosion loss, and hence effectively prolong the serving life of components.
利用电沉积表面工程技术可以有效地降低材料的磨损与腐蚀，延长工件使用寿命。
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