Effect of Soybean-Cucumber and Wheat-Cucumber Rotation on Soil Microbial Community Species Diversity;
黄瓜与小麦和大豆轮作对土壤微生物群落物种多样性的影响
Influence of continuous cropping and rotation on soybean cyst nematode and soil nematode community structure;
连作和轮作对大豆胞囊线虫群体数量及土壤线虫群落结构的影响
A study on the impact of rotation and succession planting on seedling growth and soil fertility in the forestry nursery;
林业苗圃地连作和轮作对苗木生长及土壤肥力影响的研究
Effects of Long-term Crop rotation and Continuous Cropping on Phosphorus forms in Different Crop Soil;
长期轮作连作对不同作物土壤磷组分的影响
Long-term crop rotation research(Ⅲ)——Effect of crop rotation and continuous cropping on the quantity of microbe in soil;
作物定位轮作体系长期试验研究(Ⅲ)——轮作与连作对土壤微生物数量的影响
Effects of Crop Rotation and Fallowing on Soil Characteristics and Growth of Cucumber in Continuous Cropping in Solar Greenhouse;
轮作和休茬对日光温室连作土壤性状及黄瓜生育的影响
Effects of different crop rotation system on the characteristics of soil weed seedbank;
不同作物轮作制度对土壤杂草种子库特征的影响
The 10 year experiment results of crop rotation improving soil fertility show as follows, the bean family brought into crop rotation might improve soil fertility obviously, soil fertility after bean harvesting was higher than after wheat harvesting, the accumulation effects of improving soil fertility after bean harvesting is obvious.
１０年轮作培肥试验结果表明：作物轮作中增加豆科类养地作物比例将明显地改善土壤养分状况，培肥土壤。
How to evaluate crop rotation level in large geographic area is one of the most important problems in agricultural production.
评估大地理区域内作物轮作水平是农业生产中必须解决的重要问题之一。
three field system
三区[轮作]制, 三圃农作制
Farmers rotate their crops so that the soil will remain fertile.
为保持土壤肥力, 农民搞作物轮作。
The act or technique of providing with gears.
齿轮连接，啮合配备齿轮的动作或技巧
Consideration on Training in Rotation and Practice on Policing Duty in Turns;
对“轮训轮值”创建五年来的工作思考
It fell to his brother to do the job
轮到他哥哥干那工作了。
or performing on a tread-mill is work,
蹬车轮就算是工作，
groups of men working in relays
几组人轮换接替着工作
The wheel and the drag react on each other.
轮子和刹车相互起作用。
two-lobed epitrochoidal working chamber
双弧外旋轮线工作室
computer aided tanker operation
计算机辅助油轮操作
The gravel crunched under the wheels of the car.
碎石在车轮下沙沙作响。
coppice of two rotations system
两次轮伐矮林作业法
Hypocycloid Flashes In Authorware6.0;
在Authorware6.0中制作圆轮线动画
"The form of the wheels and their work was like a beryl; the four of them had the same form and design, and they were like a wheel inside a wheel."
轮的形状和颜色(原文作作法)好像水苍玉。四轮都是一个样式，形状和作法好像轮中套轮。
This was the appearance and structure of the wheels: They sparkled like chrysolite, and all four looked alike. Each appeared to be made like a wheel intersecting a wheel.
轮的形状和颜色（文作作法）像水苍玉。四轮都是一个样式，形状和作法好像轮中套轮。
an automobile tire with deep tread to give traction in snow.
带有深轮胎面在雪中进行牵引作用的汽车轮胎。
These four pinions act as bridges between the side gears.
这四组小齿轮起到连接侧方齿轮组的桥梁作用。
The wheel-tyre interface is subject to a number of severe actions.
车轮与轮箍的界面受到许多种剧烈的作用。