Zinco a line or coarse screen half-tone block etched on zinc for letterpress printing. see zinc engraving.
线条锌版活版印刷用的线条或粗网半色调凸版。参阅锌电版。
The architects wrapped the block in sheets of cork - offering a similar tone to the brick backdrop, but creating a contrasting texture.
建筑师用软木布包裹了体块——为砖背景提供了类似的色调，但却创造了对比的纹理。
We conclude that both high myocardial adenosine level and high vagal tone may result in sinus bradycardia and A-V block.
实验结果提示：高腺苷含量及高迷走神经张力均可以起窦性心率减慢及房室传导阻滞。
It can block the UV radiation and external pollution effectively, tone the complexion, lock the water, unblock the pores and help the skin to breathe freely.
有效隔离空气污染、调整肤色锁住肌肤水份、轻易揉展，遮瑕同时不阻塞毛孔，让肌肤自由呼吸。
Stellate ganglion block (SGB) will produce different effects on cerebral circulation, including cerebral blood flow, cerebral vascular tone and cerebral blood flow velocity and so on.
星状神经节阻滞(SGB)可使脑循环产生不同的效应，包括脑血流量、脑血管张力及脑血流速度等。
The mechanism by which PAF increased pulmonary vascular pressure and resistance was not through inhibition of EDRF synthesis. EDRF did not block PAF-induced changes in pulmonary vascular tone.
PAF增高肺血管压力和阻力的机制不是通过抑制EDRF合成的途径，EDRF不能阻断PAF引起的肺血管张力升高。
The mechanism by which PAF increased pulmonary vascular pressure and resistance was not through inhibition of EDRF synthesis. EDRF did not block PAF-induced changes in pulmonary vascular tone.
PAF增高肺血管压力和阻力的机制不是通过抑制EDRF合成的途径，EDRF不能阻断PAF引起的肺血管张力升高。
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