壳

First, farmers selected the oyster bed, cleared the bottom of old shells and shells about.

首先，农夫选好牡蛎苗床，清除底部的旧壳和其它杂物，然后四处撒播干净的壳。

First, farmers selected the oyster bed, cleared the bottom of old shell.

首先，农夫选好牡蛎苗床，清除底部的旧壳和其它杂物，然后四处撒播干净的壳。

First, farmers selected the oyster bed, cleared the bottom of old shells and other debris, then scattered clean shells about.

首先，农夫选好牡蛎苗床，清除底部的旧壳和其它杂物，然后四处撒播干净的壳。

First, farmers selected the oyster bed, cleared the bottom of old shel

首先，农夫选好牡蛎苗床，清除底部的旧壳和其它杂物，然后四处撒播干净的壳。

Tomatoes - by transplanting them. First, farmers selected the oyster bed

它们。首先，农夫选好牡蛎苗床，清除底部的旧壳和其他杂物，然后四处撒播乾净的壳。

Why write your own packer when there are so many existing ones to choose from?

在有很多壳可以选择的今天，为什么要写自己的壳？

Thus there is only one object the packer has to locate at pack time.

这样，壳在加壳时候仅仅需要处理这个结构就可以了。

To fulfill the requirement of preliminary design,uniform design method is proposed to make parametric analysis and approximate optimization.

作为算例，对一个柱支承预应力扁网壳进行了参数分析，得到了网壳用钢量、变形和极限荷载系数与三个主要设计参数(单层部分材料设计应力折减系数、单层部分范围和预应力值)之间的近似函数关系，并找出了满足规范要求的各参数之间的较理想的最优水平组合。

A finite element method model of three-dimension strength and vibration analysis for a fin-stabilited sabot-discarded penetrator is established.

根据尾翼稳定脱壳穿甲弹的几何形状特点，建立了尾翼稳定脱壳穿甲弹强度分析和振动分析的三维有限元计算模型。

The research achievement provides valuable theory and advanced engineering method for engineering design, manufacture, improve and accident analysis of fin-stabilited sabot-discarded penetrator, and it has higher practical value to improve quality and efficiency of design, and reduce design cost for fin-stabilited sabot-discarded penetrator.

本文研究成果能为尾翼稳定脱壳穿甲弹的设计分析、研制、改型和事故分析提供参考，这种计算分析方法对提高脱壳穿甲弹的设计质量和效率，降低设计成本，有较大的实用价值。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。