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.
便携式手持动力工具。手柄部位振动量的测量。第7部分：具有冲击，冲力和棘轮传动动作的扳手，螺锥和螺母拧紧器。
Hand - held portable power tools. measurement of vibrations at the handle. part 7: wrenches, screwdrivers and nut runners with impact, impulse or ratchet action.
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;
本实用新型可预警的椎弓根螺锥，涉及一种外科手术器具。
The utility model provides an early-warning vertebra bow base screw wimble, which relates to a surgery device.
本实用新型可预警的椎弓根螺锥，涉及一种外科手术器具。
The utility model provides an early-warning vertebra bow base screw wimble, which relates to a surgery device.
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