Renewal of qualification may be made for any process by welding a single test coupon of either plate or pipe, and by testing of that coupon as required by QW-301 and QW-302.
如需重新获得资质,则该焊工需要遵照QW-301和QW-302的要求,在一个板材附件试片,或一个管材附件试片上,进行焊接试验。
The forbidden band width Eg of QW LD active layer materials.
激光器有源区材料的禁带宽度Eg。
There exists a sequence in a ordered Banach space which is QW convergent but not weak convergent. The fixed point of Multiple valued increasing operator is obtained without the supposition of Continuity and Compactness ( in the sense of norm or weakness).
证明了有序Banach空间(E,P)肿,拟弱收敛(简称QW收敛),但不弱收敛序列的存在性,获得了集值增算子的不动点,推广了最近有关结果。
A new CASIC MANPADS weapon, the QW-19, was also shown.
CASIC的新MANPAD武器QW-19也进行了展示。
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