paper submerging tray
1Paper submerging tray — Кювета (с раствором) для погружения в него бумаги или копии …
2Sowing — is the process of planting seeds. owing in practicePretreatment of seed and soil before sowing Before sowing, certain seeds first require a treatment prior to the sowing process.This treatment may be seed scarification, stratification, seed… …
