1.
PE pipe contains no toxin, no dirt, no bacterium, can provides the best choice of pipe for potable water.
pe材质无毒、无结垢层，不滋生细菌，完全可用于饮用水管道的安装。
2.
cast off in scales, laminae, or splinters.
水生垢板层或裂片剥落。
3.
There was a thin curst of dirt around the bath.
浴缸四周有一层薄薄的污垢。
4.
Wants a wash too.Take off the rough dirt.
这手也该洗一洗了，去去那层泥垢。
5.
There is a coating of slime on the unwashed sink.
未刷洗的水涤槽上有一层污垢。
6.
A coating or an incrustation of filth or refuse.
污垢污物或垃圾的覆盖层或凝结物
7.
There be a coating of slime on the unwashed sink
未刷洗的水涤槽上有一层污垢
8.
EXPERIMENTAL INVESTIGATION ON THE CaCO_3 FOULING CHARACTE-RISTICS OF THE PTFE AND FEP COATING SURFACE
PTFE、FEP涂层表面CaCO_3污垢特性的实验研究
9.
Scaling control and removal for extra-low permeability reservoir in Jiyuan Oilfield
姬塬特低渗高含盐地层结垢防治效果
10.
Effect of anti-fouling coating on surface properties of heat exchanger
防垢涂层对热交换器表面性能的影响
11.
abrasion collar
擦拭轮（又称污垢轮 [grease collar] 弹头射入口周围一层油垢或金属附着物）
12.
Soil adhesion may be reduced even if water cannot readily permeate the soil layer.
即使水不易进入污垢内层，也能降低污垢的吸附作用。
13.
" it kept the body soil from reaching the outer clothes," she said.
“内衣会避免身体的污垢接触到外层的衣服，”她说。
14.
Research on Anti-scaling and Antifriction Coating of Oil Extraction Screw under ASP Flooding System;
三元复合驱采油螺杆涂层防垢及减摩技术研究
15.
Study on the Technology and the Prevent Fouling Property of Electroless PTFE Composite Plating of Fuel Tube;
油管聚四氟乙烯复合镀层工艺及阻垢性能研究
16.
Investigation on the Effects of the Teflon Coating Surface Characteristics on CaCO_3 Fouling
特氟龙涂层表面特性对CaCO_3污垢影响的研究
17.
Preliminary Studies on the Effect of Soil Layer on Measuring Grease Stain Thickness in Pipeline by γ Ray Scattering Method
土层对γ散射法测量油垢厚度影响的初步研究
18.
Here and there under the dirt there were the red scars of wounds, and near the ankle the varicose ulcer was an inflamed mass with flakes of skin peeling off it.
污垢的下面到处还有红色的疮疤，脚踝上的静脉曲张已溃疡成一片，皮肤一层一层掉下来。