1.
Preparation and research process of application of photocatalytic self-cleaning glass with nanometer TiO_2
纳米TiO_2光催化自洁净玻璃的制备及应用研究进展
2.
"and the priests and the Levites made themselves clean; and they made the people clean, and the doorways and the wall."
祭司和利未人就洁净自己，也洁净百姓和城门，并城墙。
3.
And the snow-white sheet of paper did remain pure and chaste for ever, pure and chaste - and empty.
果然，这张白纸得以永续自己的洁白和纯净了：洁白，纯净，又空空如也。
4.
God is purity Himself; nothing impure can come before Him.
上帝他自己是洁净的，任何不洁的都不能到他面前来。
5.
Hair should be conservatively colored and styled and kept clean, brushed and neat.
头发必须保持自然的颜色和样式并且保持洁净，梳理整洁。
6.
Discussion on the Reform of Automatic Control for AHU Coil Frost Protection Used for Cleaning-Room
洁净空调机组防冻保护自动控制装置的改进
7.
Discussing the Promotion of Automatic Control for AHU Coil Frost Protection Used for Clean-room
对洁净空调机组自动控制中防冻保护的改进
8.
Sex Taboos and Nature in the Medieval English Poem Cleanness;
性禁忌和自然之道：14世纪英文布道诗《净洁》
9.
The printing and dyeing wastewater degradation and purification of self-clean textile material
自清洁纺织材料对印染污水的降解净化
10.
(as) neat as a bandbox
极其整洁，干干净净
11.
To cleanse or purify or become cleansed or purified.
（使）清洁，（使）净化
12.
"Thus you shall do to them, for their cleansing: sprinkle purifying water on them, and let them use a razor over their whole body and wash their clothes, and they will be clean.
民8:7洁净他们当这样行、用除罪水弹在他们身上、又叫他们用剃头刀刮全身、洗衣服洁净自己。
13.
"and they got their brothers together and made themselves holy, and went in, as the king had said by the word of the Lord, to make the house of the Lord clean."
起来聚集他们的弟兄，洁净自己，照着王的吩咐，耶和华的命令，进去洁净耶和华的殿。
14.
"and when a man who has a flow from his body is made clean from it, he is to take seven days to make himself clean, washing his clothing and bathing his body in flowing water, and then he will be clean."
患漏症的人痊愈了，就要为洁净自己计算七天，也必洗衣服，用活水洗身，就洁净了。
15.
"and this is how you are to make them clean: let the holy water which takes away sin be put on them, and let the hair all over their bodies be cut off with a sharp blade, and let their clothing be washed and their bodies made clean."
洁净他们当这样行，用除罪水弹在他们身上，又叫他们用剃头刀刮全身，洗衣服，洁净自己。
16.
But if anyone regards something as unclean, then for him it is unclean.
惟独人以为不洁净的，在他就不洁净了。
17.
People come to know the seriousness of water pollution.
没有水我们不能生存，所以我们必须保持水的洁净，以保护我们自己。
18.
Whiten and moisturize skin with outstanding cleaning effect, recover skin to natural gloss.
可在洁净肌肤的同时，美白滋润肌肤，使肌肤瞬间恢复自然色泽。