The tragacanth gum is added to aid in keeping the entire mixture in solution . 加入黄蓍胶有助于保持全部混合物呈溶液状。
2.
Various overlay mediums, such as agar, starch gel, methyl cellulose and tragacanth are used . 常用的覆盖培养基有：琼脂、淀粉凝胶甲基纤维素和黄蓍胶等。
3.
This mixture of grasses and yarrow will out - compete the resident weed population , increase water penetration , and improve the microflora and organic matter in our soils 牧草和蓍草混合可以减少杂草的数量，增加水的穿透能力，改善土壤的微生物和有机物质。
4.
He remembered the treatise of " i heard the ancient five emperors and three kings would definitely saw the inscriptions on bones or tortoise before launching a war " , and cautiously scrutinized the " sign " on it 他联想到《史记》中“闻古五帝三王发动举事必先决蓍龟”的论述，并仔细端详着每一片甲骨上一个个成形的“符号” ，紧缩的眉头舒展开来。
5.
The stilton cheese makers association commissioned an aromatics firm to create eau de stilton , described on the association s web site as featuring a " symphony of natural base notes including yarrow , angelica seed , clary sage and valerian " 该协会在其网站上描绘说，该香水以“完美融合了西洋蓍草当归种子香紫苏和缬草的自然基调”为特色。
6.
The stilton cheese makers association commissioned an aromatics firm to create eau de stilton , described on the association ' s web site as featuring a " symphony of natural base notes including yarrow , angelica seed , clary sage and valerian " 该协会在其网站上描绘说，该香水以“完美融合了西洋蓍草当归种子香紫苏和缬草的自然基调”为特色。
