EST两种技术都可用于对早熟禾属物种的辅助鉴定，但POD技术在稳定性、酶带集中性和可操作性方面优于EST技术。

Both POD and EST techniques could be used for identifying the species of Poa, but POD technique is superior to EST technique in stability, feasibility and band concentricity.

youdao

所有的物质都是由分子构成的，而所有的分子内都有微小的原子、带正电荷的质子、中性的中子和带负电荷的电子。

All materials are made up of molecules, and all molecules have tiny atoms, with positively charged protons, neutral neutrons, and negatively charged electrons.

youdao

木箱包装，内装5卷，每卷用塑料薄膜及中性纸包裹，箱外铁带捆扎。 㿠。

Packed din Wooden Case with 5 Reels Inside and Every Reel was Wrapped with Poly-Membrane and Neutral Paper. The Cases were Bound with Ironbelts Externally.

youdao

The molecule is net neutral, but this right end is a little bit more negative and the left end is a little bit more positive.

这分子是电中性的，但右边要带一点负电荷,而左边要带一点正电荷。

麻省理工公开课 - 固态化学导论课程节选