This rhomboid shaped crystal of calcium pyrophosphate, which appears bluish-white (weak positive birefringence) by polarized light with red plate.

焦磷酸钙菱形结晶在红感光板偏振光下呈蓝白色(弱正双折射)。

youdao

UV curable materials as a polymer matrix and a nematic liquid crystal with positive dielectric anisotropy are mixed and sandwiched between ITO coated glass substrates.

混合紫外光固化的聚合物基质和具有正介电各向异性的向列相液晶，并将混合物注入到以ito玻璃为衬底的液晶盒中。

youdao

USE: Electric- contact pressure gauges are used for measuring positive and negative pressure of liquids and gases which are nor corrosive to copper and copper alloy and not explosive and crystal.

电接点压力表适用于测量对铜及铜合金无腐蚀、无爆炸危险、非结晶的各种液体、气体等介质的压力。

youdao

Crystal's nervousness is understandable - though doctors say that if HIV-positive women take anti-retroviral drugs during their pregnancy and avoid breast-feeding, the chance of their baby carrying the virus is tiny.

BBC: Teenagers - anonymous

Of the myriad economic consequences positive and negative of this irreversible, tidal wave of change, one has become crystal clear: America has been left with a glut of commercial property that poses a major threat to our economic wellbeing.

FORBES: A Monster Real Estate Paradigm Shift Demands A New Direction for Capital