Evaluation on Acute Toxicity and Safety Concentration of Mercury and Selenium to Swordtail Fish, Xiphophorus helleri
汞和硒对剑尾鱼的急性毒性及其安全浓度评价
The acute toxicity test of trichlorosiocyanurate to Xiphophorus helleri and control bacterial test outside of body
三氯异氰尿酸对红剑鱼的急性毒性及体外抑菌试验
The Behavior of Swordtail Xiphophorus helleri and Its Artificial Breeding
剑尾鱼的生活习性及人工繁育
This paper is a comprehensive study of Heller's posthumous novel Portrait of an Artist, as an Old Man.
本文是对海勒遗作老年艺术家画像的综合探讨。
automatic peanut sheller
自动花生剥壳机
axial flow corn sheller.
轴流脱粒机
Application of Xiphophorus helleri to detection of virulence of fish pathogenic bacteria
剑尾鱼在检测细菌毒力方面的应用
The Full Belly Project also has a petal hour pedalpowered sheller.
温饱项目同样有脚踏动力脱壳机。
The Full Belly Project also has a pedal powered sheller.
果腹计划还有另一台脚踏板操作去壳机。
The Full Belly Project also has a pillar pedalpowered sheller.
温饱项目组织也生产了一脚踏板动力的脱壳机。
Then for a few hellers they bought him a wooden bowl and made him eat from it.
他们于是花了几分钱买来一只木碗给老人吃饭用。
spring busker sheller
弹簧式玉米脱粒机
centrifugal sheller.
离心型剥壳机
The Design of the Chestnut Sheller
板栗脱壳设备的设计
spring corn sheller
弹压式玉米脱粒机
cylinder corn sheller
滚筒式玉米脱粒机
So you've got corn shellers.
因此你能买到玉米脱粒机。
Research and design on corn sheller by extruding and rubbing method
挤搓式玉米脱粒机的研制
Sheller of flax crops harvest
胡麻类作物脱粒机的研制
A Study the Sheller with Decline Oscillatory Screen Plate
带振动筛板脱粒机的研究
How design that height mass maize sheller is the priority designing that out.
如何设计出高质量的玉米脱粒机是设计的重点。
The Development of Eucommia Seed Sheller
杜仲籽剥壳机的研制
hand driven maize sheller
手摇玉米脱粒机
THE EFFECTS ON SEXUAL REVERSION OF XIPHOPHRUS HELLERI BY TEMPERATURE
温度对剑尾鱼性逆转的影响
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