River Snail Cipangopaludina Cathayensis as an Indicator for Toxicity and Bioavailability of Heavy Metals in Sediment

The Effect of pH Value Towards River Snail's Existence and Growth

pH值对田螺生存和生长的影响

Improvement in Process Precision of Spiral Shell's Bevel Gear

螺伞齿轮加工精度的提高

Spiral Shell and Tubes Heat Exchanger

螺旋壳列管式换热器

The error analysis of calculating method on reinforce concrete spiral shell

钢筋混凝土螺旋形板壳计算方法的误差分析

Freshwater or marine or terrestrial gastropod mollusk usually having an external enclosing spiral shell.

淡水、海水或陆栖的腹足纲软体动物，通常有外部包裹的螺旋壳。

Technology for Large-scale Breeding of Spiral Shell Babylonia areolata

方斑东风螺规模化苗种繁育技术研究

Cephalopod of the Indian and Pacific oceans having a spiral shell with pale pearly partitions.

产于印度和太平洋的头足类动物，螺旋状的壳上有浅色珍珠状分隔线。

Fundamentally research on heat transfer properties of double deflection model spiral shell heat exchanger

新型双向螺旋板式换热器传热性能的初步研究

Steady array spiral shell pole type penetrate device, two penetrate saturation system, make products to be getting high-quality, melt high-aeeuracily.

稳定的直列螺杆式射出装置，二次射出饱和系统，使产品高品质化，高精密化。

A lubricant film of mucus will emerge, which separate spiral shell from the inner wall of intestine, achieving no injury drive.

螺旋外壳与肠道内壁之间将形成粘液动压润滑膜，将机器人与肠道内壁分隔开，实现无损伤驱动。

Methods The direct compression was used to check the cercaria of C.sinensis in Spiral shell's.

方法用直接压片法检查淡水螺体内的华支睾吸虫尾蚴；

Application of Matched Spiral Shell Pole Refrigeration Compressor and Economy Device

经济器和螺杆制冷压缩机配合使用初探

Any of various marine gastropods, such as a periwinkle, having a spiral shell.

任一种海栖软体动物，如滨螺，长有螺旋形的壳。

When changing and processing spiral shell's bevel gear, it is necessary to use evolute internal spline tooth shape locating taper spindle for backing processing, so as to meet different spindle precision requirements of evolute internal spline reference circle, bearing fit circle and gear pitch circle.

螺伞齿轮更换加工过程中，需使用渐开线内花键齿形定位锥度芯轴支承加工，才能达到渐开线内花键分度圆与轴承配合圆及齿轮节圆同轴精度要求。

Good-bye, old snail Bay! Good-bye, old friend!

再见了，老螺蛳湾！再见，老朋友！

Effects of Snails Feeding Rates on Size, Yield and Survival of Chinese Mitten Crab Eriocheir sinensis

螺蛳投放量对中华绒螯蟹规格、产量和成活率的影响

Everybody knows they're tasty!

人人都知道螺蛳很好吃！

I overheard the fishermen in town saying that tomorrow they will come to this pond and drain it of every fish and every shell to the last periwinkle. When that happens, I am doomed for I shall have nothing to live on.

我听城里的渔夫们说，他们明天要来捕光所有的鱼和甲壳类动物，连个螺蛳也不剩，那样我就死定了，因为我没有东西吃了。

In fact, she used to save spiral lions that had wandered too far from the water.

实际上，她经常救那些爬得离河太远的螺蛳。

Such as the spiral crescendo structure, which entails a dialogue between contrasting upper and lower phrases, a step-by-step shortening of the beat until a crescendo is reached.

如螺蛳结项结构，即将上下两个对答的乐句，一步一步减少节拍，最后合而为一，推向高潮。