英语语法分析

The haemolymph cation levels of bivoltine races were about 30% higher than the multivoltine PM.

家蚕二化性品种的血淋巴阳离子水平比多化性品种PM高出30%。

Incomplete diallel crosses were made ir an experiment with bivoltine RACES of silkworm (Bombyxmori) to study the genetic effects of six quantitative characters.

本文以二化性品种为材料，采用不完全双列杂交法分析家蚕部分数量性状的遗传效应。