苫盖

甜菜冻藏苫盖厚度的试验研究

A Trial Study on the Covered Thickness of Frozen Sugarbeet Storage

浮卷法塑料薄膜苫盖技术的应用研究

An Applied Research on the Covering Technique with Plastic Film by Floating Type

本文对甜菜冻藏长期保管的苫盖厚度做一可行性研究。

The paper studied the covered material thickness of the frozen sugarbeet storage .

用这种光生态膜苫盖温室大棚进行蔬菜生产，产量提高了44.6%。

The results show that yields of vegetables have been increased 44 6 % by using greenhouse built of the photoecology agricultural film .

所述的变速箱（1）有两个动力输出轴，可同时带动两套浮卷机构，实现两个盐池的苫盖收放。

The gearbox ( 1 ) provided with two power output shafts can drive two suits of flotation mechanisms simultaneously , realizing the cover coating of two salt ponds .

铁路运输不得使用敞车，水路运输不得配装仓面，公路运输应当苫盖严密，捆扎牢固。

They must not be transported in open wagons on railways and , if by ship , no top loading is allowed ; if by truck , they must be securely fastened up and safely protected .