Objective To discuss the diagnosing value for endometrium lesion by using sonohysterography (SHG).

目的探讨宫腔超声造影术对宫腔良性病变的诊断价值。

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As for SHG, we show that the efficiency of SHG in PBG can be greatly enhanced if the phase match condition is met.

理论分析和数值计算表明：相位匹配条件满足的情况下，光子晶体(PBG)中的二次谐波的产生的效率和增强会大大提高。

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The influences of walk-off Angle on effective second-order nonlinear coefficient and SHG efficiency were also analyzed.

计算并分析了离散角对有效二阶非线性系数和倍频效率的影响。

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As practiced in India, both the MFI and the SHG model have neglected the key piece that made microlending in Bangladesh work so well.

FORBES: In India, Size Does Matter

It is run by and centred on a network of women's self-help groups (SHG) and linked to a government school and a local development resource centre.

UNESCO: Communication and Information

New lens elements and glass materials ensure the clearest possible imaging performance, and the proven dust and splashproof mechanism originally featured in the Four Thirds SHG (Super High Grade) series lenses is now incorporated for the first time in a Micro Four Thirds System lens.

ENGADGET: Olympus unveils a cavalcade of point and shoot cameras and a PEN lens at CES