而且峰值应力比与分叉应力比差值基本不变，但松砂较密砂差值大。
The difference in stress ratio between peak and bifurcation is almost the same for medium, dense or loose sands, but is greater than that for loose sands.
研究表明，主应力方向对在不排水条件下饱和松砂的单调剪切特性具有显著影响。
It was found that the undrained shear behavior of loose sands was considerably dependent on the orientation of the principal stress.
机架的常见缺陷有裂纹、掉砂、夹渣、缩孔缩松和晶粒粗大等。
The common defects of the housing casting include cracks, sand drop, slag inclusion, shrinkage porosity and rough grain, etc.
通过化学组成分析、室内砂培试验、模拟样地试验和模型物浇灌试验研究了落叶松水曲柳混交林中落叶松枯枝落叶对水曲柳生长的影响。
The effect of larch litter on the growth of ash was studied by means of chemical analysis. indoor sand culture test. model land test and model compound test.
室内砂培试验证明、落叶松的枯枝落叶能促进水曲柳的生长，模拟样地试验验证了室内砂培试验的结果。
The sand test and model land test were the proof of the stimulation of litter on the growth of ash.
厚实板类铸件按传统工艺生产，容易产生缩孔、缩凹、缩松、夹砂、胀包等铸造缺陷。
The shrinkage cavity, depression, shrinkage porosity, scab and swell defects often took place with the heavy plate castings produced by adopting traditional foundry method.
厚实板类铸件按传统工艺生产，容易产生缩孔、缩凹、缩松、夹砂、胀包等铸造缺陷。
The shrinkage cavity, depression, shrinkage porosity, scab and swell defects often took place with the heavy plate castings produced by adopting traditional foundry method.
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