Blisters are not acceptable . improper adhesion which exposes bare metal is not acceptable 砂眼不可以接受.暴露金属底材的电镀附著不可接受
2.
Oily or greasy surfaces repel fluxes , leaving bare spots that oxide and result in voids and inclusions 油脂表面会排斥焊料,留下氧化物裸点,并导致砂眼和杂物。
3.
Tests for mechanical and physical properties of aggregates . part 3 : determination of loose bulk density and voids 集料机械和物理特性试验.第3部分:松散块密度和砂眼的测定
4.
Centrifugal casting , compact structure , free from pinhole porosity and slag , smooth surface and even wall thickness 高速离心铸造,组织致密,无砂眼、夹渣,表面光滑、壁厚均匀。
5.
All there are skin disease , sand holes , epilepsy disease , pulmonary tuberculosis or other infection patient , can ' t enter the pool before recovering 凡有皮肤病、砂眼、癫痫症、肺结核或其他传染病者,病愈前不得入池。