water-control device

Semipermeable membrane device ( SPMD) was recently accepted to estimate the time-integrated concentrations of bioavailable hydrophobic organic compounds ( HOCs) in a similar manner as lipophilic bioconcentration. The Effect of Water Activity and Semipermeable Membrane on Shale Hydration

半渗透膜采样技术（SPMD）模拟了生物富集水中疏水性有机污染物的过程，并且可以用来监测生物有效态污染物的长期平均浓度.活度与半透膜对页岩水化的影响

The rotor dimension was 300 mm in diameter and 40 mm in height, and packed with packings. Distillation test was made with ethanol-water binary mixture in a single rotor device.

一个外径为300mm，高40mm，内装填料的转子，以乙醇&水系进行全回流精馏试验。

Cover the entire device to prevent water penetration.

把整台设备都罩住以免进水。

The built-in safety device compensates for a fall in water pressure.

该内置式安全装置在水压下降时能提供保护。

Technology of arranging and transferring carbon nanotubes on the surface of water& A new method to fabricate nano-device

碳纳米管液面排布转移技术&一种新型纳米器件加工手段