干: trunk; main part胶: glue; gum含量: content的: 4次方是 The fourth power of 2 i ...测定: determine; determination; se ...造纸原料果胶含量的测定: raw fiber material determination of pectin contentt干胶含量: dry rubber content氨含量的测定: liquefied anhydrous ammonia estimating of ammonia content氮含量的测定: rubber raw natural and rubber latex natural-determination of nitrogen content硫含量的测定: wickbold钠含量的测定: paper board and pul- determination of potassium and sodium content铁含量的测定: test methods of wooden activated carbon-determination of iron content铜含量的测定: natural rubber latex-determination of copper content锡含量的测定: fruit and vegetable productsdetermination of tinn锌含量的测定: test methods of wooden activated carbondetermination of zine contentnt苯甲酸含量的测定: fruits vegetables and derived products - determination of benzoic acid content残渣含量的测定: natural rubber latex concentrate-determination of sludge content多糖含量的测定: measurement of the polysaccharide content钙镁含量的测定: test methods of wooden activated carbon-determination of calcium and magnesium content灰分含量的测定: test methods of wooden activated carbondetermination of ash contentnt挥发分含量的测定: rubber raw determination of volatile matter content结晶水含量的测定: gypsum plasters-determination of water of crystallization content氯化物含量的测定: determination of chloride content镁含量的测定法: pulps paper and boarddetermination of calcium and magnesiumum内酯含量的测定: meat and meat productsmethod for determination of glucono deltalactone contentent