在锥实螺的例子中，研究表明右旋基因是在卵的形成期表达的。
In the case of Lymnaea peregra, studies indicate that a dextral gene is expressed during egg formation.
这道菜是把米粉煮熟，再配上由河螺和猪骨头熬了几个小时的汤一起食用的。
The dish is made up of rice noodles boiled and served in soup made from river snails and pork bones which are cooked for hours.
两种相同玉米品种都接种了固氮螺菌。
The two common corn cultivars were inoculated with Azospirillum brasilense.
较之螃蟹和鱼肉，我更喜欢吃蚌、贝和螺肉。
I prefer clams, scallops and whelks tops to crab and fish meat.
终于他的手摸到了一个螺钉的螺头。
不像乌贼，鹦鹉螺有保护壳。
现在很多人都能看见海豚螺捕的情景。
在水中，淡水螺中释放出的尾蚴侵入人体皮肤，造成感染。
Larval forms of the parasites, which are released by freshwater snails, penetrate the skin of people in the water.
黄金宝螺的贝壳极难找到，它们为收藏家所推崇。
Golden cowrie shells are among the hardest shells to find and are prized by collectors.
研究人员希望能够了解海豚使用这些螺壳的方式的细节。
The researchers also hope to learn more about how the dolphins actually use the shells.
鹦鹉螺采用开放式架构设计，支持采用新型元件和技术升级。
The Nautilus USES an open architecture to support replacement components and newer technologies.
结果就像画廊里所展出那张“彩色鹦鹉螺”一样，是值得的。
But the results, like the nautilus in the photo gallery that accompanies this piece, are worth it.
与其他的宝螺相类似，它们的外壳非常光滑，擦亮得很优美。
Like other cowries, their shells are smooth and highly polished.
有些种类的蜗牛有着从里到外逆时针的螺壳，不过这少见的多。
Some species of snail have shells that spiral out in an anticlockwise direction, but it is much rarer.
在拥挤的海面和水中航行时，鹦鹉螺显示器增强了船的安全性。
The Nautilus enhances ship safety during surfaced and submerged operations in crowded waters.
海豚先用它们的吻突将小鱼赶到大海螺壳中，然后将螺壳带出水面并晃动。
Dolphins first trap small fish in large conch shells with their rostrums (beaks). They then bring the shells to the surface and shake them.
鹦鹉螺化石，这些螺旋状的贝壳，经常分布在二叠纪的化石群中。
Ammonoids, with their tightly coiled, spiral shells, are also widespread in the Permian fossil record.
人们捕获和销售马蹄蟹作为更有利可图的鳗鱼和峨螺养殖业的诱饵。
People were capturing the crabs and selling them as bait for the more profitable eel and whelk fisheries.
在水面上行走看起来十分神奇，但对一些水生螺类来说这却是每天都在做的事。
Walking on water may seem miraculous, but for tiny aquatic snails, it's an everyday activity.
控制血吸虫病的基础是，开展药物治疗，灭螺，改善环境卫生，并进行卫生教育。
Control of schistosomiasis is based on drug treatment, snail control, improved sanitation and health education.
在斐济岛上，酋长们戴着黄金宝螺贝壳的项链，来表示他们地位和等级。
On the island of Fiji, they were worn on a necklace by a chieftain as a symbol of status and rank.
有些鹦鹉螺化石上的齿痕看起来好像是由巨大的爬虫类捕食者沧龙留下的。
Some ammonite fossils have tooth marks that look as though they were made by huge reptilian predators called mosasaurs.
现代的珍珠鹦鹉螺与古鹦鹉螺的关系备受争议，但它也有类似的结构安排。
Modern pearly nautiluses, whose relationship to ammonites is much debated, have a similar arrangement.
高音采用了B&W的鹦鹉螺管装的设计，很好地遏止共振并增强高频表现。
The tweeters feature B&W's Nautilus tube-loaded design claimed to dampen resonance and improve high-frequency sounds.
这样的结构具有中性浮力，使得鹦鹉螺能够靠后推力移动（像枪乌贼一样）。
The result had neutral buoyancy, allowing the animal to move (like squid) by jet propulsion.
作品的主题包括一张女性脸庞、一个跳舞者、一只海豚、一只鹦鹉螺壳和太阳。
Motifs include a woman's face, a dancer, a dolphin, a nautilus shell and the sun.
这些色彩斑斓的生物属紫螺科，足部产生的气泡可产生使它们浮在水面的浮力。
The colourful creatures, who are members of the Janthinidae family, stay alive by attaching their feet to the bubbles they carry to give them buoyancy.
这些色彩斑斓的生物属紫螺科，足部产生的气泡可产生使它们浮在水面的浮力。
The colourful creatures, who are members of the Janthinidae family, stay alive by attaching their feet to the bubbles they carry to give them buoyancy.
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