紫胶

The research of phenol-formaldehyde resin modified with lac can be expected to widen the application of the lac and enlarge the utilization of the renewable resource.

研究了对紫胶改性酚醛树脂胶粘剂的固化时间、接胶合板的粘接强度和甲醛释放量进行了测定。

"Forest chemical products\",\"林产化学产品制造业\",\Includes tanning extracts, resin, lac, turpentine oil, pine tar, wood hydrolysis alcohol, active carbon, camphor, borneol, cork producers.

&，\&包括栲胶，松香，紫胶，松节油，松焦油，木材水解酒精，活性炭，樟脑，冰片，软木制品等的生产\

Tempera, watercolours, gold and silver leaf, lacquer, varnish, lac, beeswax, precious fabrics, leather, feathers and paste can all be used.

Tempera， watercolours，金子和银色叶子，亮漆，油漆，紫胶，蜂蜡，珍贵的织品，皮革，羽毛和浆糊可能所有被使用。

A resinous secretion of the lac insect deposited on trees and used in making ''.

紫胶，虫胶由紫胶虫分泌的沉积于树上的树脂分泌物，用于制造虫胶清漆

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。