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- We have determined surface tension, cmc, isoelectric zone, foam property, wetting property, emulsification, Krafft point, thickening property and hard waterresisting property of the four kinds of amphoteric surfactants (BS 12, OB 2, LAB, LAO). 本文测定了四种两性表面活性剂（BS－12，OB－2，LAB，LAO）的表面张力、临界胶束浓度（cmc）、等电区、发泡能力、润湿性、乳化作用、Kraft点和增稠性能；
- The Norwegians live in a comparatively cold zone. 挪威人生活在比较寒冷的地区。
- Supplies were parachuted into the earthquake zone. 救援物资已空投到地震区。
- isoelectric zone 等电区
- Some people live in Torrid Zone. 有些人生活在热带。
- I'd like to see Europe as a nuclear-free zone. 我希望欧洲成为无核区。
- The troops detrained near the battle zone. 部队在战区附近下了火车。
- Isoelectric focusing may be used as another indication. 等电聚焦可以用为另一指标。
- They are pulling their troops out of the battle zone. 他们正把部队调离战区。
- They have declared their country a, nuclear-free zone. 他们宣布本国为无核区。
- Wrestling is in a twilight zone between sport and entertainment. 摔跤是介於运动和娱乐两者之间的活动。
- A virus is nigatively charged above its isoelectric point. 病毒在它的等电离点以上时带负电荷。
- Most of the world's wheat is grown in the North Temperate zone. 世界上大部分小麦种植在北温带。
- A virus is negatively charged above its isoelectric point. 病毒在它的等电离点以上时带负电荷。
- Ninety per cent of the country lies in the temperate zone. 这个国家百分之九十的地方都是温带。
- Methods: Isoelectric focusing in polyacylamide gels was used. 用薄层聚丙烯酰胺凝胶等电聚焦的方法。
- The isoelectric pH for this enzyme was determined to be 5.85. 现测得该酶的等电点pH值为5．85。
- A civilian in wartime, especially one in a war zone. 平民战争时期的平民，尤指在战争区的平民
- The zone was policed by United Nations forces. 该地带由联合国部队维持治安。
- We were evacuated from the war zone. 我们从战区疏散。
