他们怎么会想到养殖人工珍珠的？
How did they pick up the idea of cultivating artificial pearls?
对于人工养殖的珍珠而言，它们的核心并不是沙粒，而是像小塑料珠或小玻璃珠之类的物体。珍珠养殖者把这些小东西塞到牡蛎中，然后等上一年左右的时间。
Cultured pearls don’t have at their core a grain of sand, but instead arelittle plastic or glass beads or something that pearl farmers stick into theoyster for a year or so.
牡蛎会尽职尽忠地为自己腹中的小珠子包裹上一层又一层的珍珠质。 比起那些要从小沙粒开始慢慢成长的珍珠，人工的方法明显会节省很多时间。
The oyster dutifully coats the little marble with anouter layer of pearl and much time is saved not having to grow each pearl upfrom the size of a sand grain.
人工接种条件下，病菌能侵染高粱、苏丹草、哥伦布草、玉米、谷子、珍珠粟、薏苡、水稻、燕麦、小麦、狗尾草等禾本科植物。
Under artificial inoculation the pathogen could infect cereal plants such as sorghum sudangrass columbus grass corn foxtail millet pearl millet jobstears rice oat wheat and green foxtail.
人工养殖的珍珠和天然的一样具有光泽吗？
有的。要天然珍珠的还是人工养殖珍珠的？两种我们都有。
调查珍珠养殖场合浦珠母贝人工培育幼苗的管养和生长情况。
The growth and management of the pearl oyster spats in the farm were investigated.
随着科学研究手段、方法的深入而逐渐深入研究，为人工培育珍珠及制造现代有机-无机复合材料提供了科学依据。
With the development of advanced science means and methods, they are provided to insight into pearl-culture and fabrication of advanced organic-inorganic composite materials.
您想看天然珍珠还是人工养殖的珍珠？
天然的珍珠价值更高，但人工的珍珠光泽一样夺目，一样漂亮。
Natural pearls are of higher value, but the cultured pearls have equal luster and are just beautiful.
天然珍珠和人工养殖珍珠会有些许粗躁的感觉，如同细砂纸般，那是真珠质的天然触感。
Cultured and natural pearls will feel slightly rough , like fine sandpaper , because of the texture of natural nacre.
本文用显微拉曼对三种珍珠(天然海水珍珠、人工养殖海水珍珠、人工养殖淡水珍珠)做了测试与分析。
Three kinds of pearl natural seawater pearl, farmed seawater pearl, and farmed fresh water pearl have been tested by the confocal micro Raman spectrometer.
阐明珍珠层与聚乳酸复合后形成的人工骨材料在体外培养环境中对成骨细胞生物学行为的影响。
To observe and analysis the effect of nacre composite artificial bone on biological behavior of human osteoblast in vitro.
目前，珍珠的等级评判主要靠人工依据珍珠的颜色、光泽、形状、纹理等进行大致估计。
At present, the pearl level judging depends largely on the artificial estimate of the color, luster, shape, texture of the pearl.
为代替耗时的传统人工分选，设计了一种基于机器视觉的珍珠光洁度在线自动分级系统。
An online automated grading system of pearl perfection based on computer vision was introduced to replace time-consuming human grading.
为代替耗时的传统人工分选，设计了一种基于机器视觉的珍珠光洁度在线自动分级系统。
An online automated grading system of pearl perfection based on computer vision was introduced to replace time-consuming human grading.
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