多数瓢虫有椭圆形盖装的躯体和六只腿。
Most ladybugs have oval, domeshaped bodies with six short legs.
分别对凸轮靠模和曲柄滑块机构作为工装加工椭圆手孔盖的原理及特点进行了探讨。
The paper respectively studies the principles and features for profiling attachment and slider crank mechanism to be used as clamping apparatus to fabricate oval hand hole cover.
该种以具有长椭圆形的鳃盖骨、躯干部披6列鳞片为特征与其他种区别。
The new species differs from other species of this genus in long and elliptical opercular and the presence of 6 rows of trunk scales.
应用推荐