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- nutile and anatase phases 金红石型和脱钛矿型
- The TiO_2 crystal grains conglutinate and distribute uniformly on slide in the form of multi-crystal anatase phase. TiO_2晶粒以多个锐钛矿相晶体（晶粒在10nm左右）的形式附着在玻璃片上，且分布相对均匀。
- The crystal structure phase in the Ag-TiO_2 thin film was characterized as anatase phase with approximately 10 nanometer diameter of particle size by XRD and DRS. 通过XRD和DRS等的表征结果表明：Ag-TiO_2膜中的TiO_2主要以锐钛型矿存在，大小为十纳米左右，吸收峰发生红移现象，在紫外光区和可见光区的吸收明显增强。
- The mixed crystallite consisting of brookite and anatase has the best photocatalytic activity in the all samples. 光催化活性最好的是由板钛矿相和锐钛矿相组成的混晶样品。
- The smallest crystal size of the anatase phase from TiO2/DEA was approximately 5 nm, and the larger particles of the rutile phase from all types of N-doped TiO2 exceeded an average of 10 nm. 混合钛矿和金红石相显然是目前在联合国掺杂TiO2 ， TiO2/TEN和TiO2/urea 。微晶尺寸观察TEM照片均符合这些所得估计高峰扩大X射线衍射谱。最小的晶体大小的锐钛矿相从TiO2/DEA约5纳米，大颗粒的金红石相所有类型的N -掺杂TiO2超过平均10纳米。
- The crystalline grain size is uniforn, and the size distribution of the powder is narrow.The prepared nanosized TiO2 powders have high-purity and their phase structure is single anatase phase. 结果表明：随着沉淀剂浓度的不同，可制备出不同粒径的二氧化钛纳米颗粒，其粒径均匀，尺寸分布较窄，纯度高，晶型皆为单一的锐钛矿型。
- I hit him fair and square on the jaw. 我不偏不倚打中他的下巴。
- It is a fact of life and you must face it. 这是严酷的现实，你必须面对它。
- She and I can't live under the same roof. 她和我不能住在一起。
- She had to scrimp and save to pay for her holiday. 她不得不为付假期的费用而苦苦攒钱。
- I'll try and rustle you up something to eat. 我设法给你弄点吃的。
- He sprang up and rushed to the door. 他跳起身，跑到门口。
- He took sick and died a week later. 他得了病，一周后就死去了。
- He's been in and out of prison for years. 他多年来屡次进出监狱。
- The air in the garden was warm and fragrant. 花园里的空气一片温馨。
- The child was tired and fretful. 那孩子又疲倦又烦躁不安。
- Routine office work is my bread and butter. 日常的办公室工作是我的谋生之道。
- Language teaching is both a science and art. 语文教学既是一门科学又是一种艺术。
- The old man stared the uninvited guest up and down. 老人把不速之客上下打量了一番。
